Filed pursuant to Rule 424(b)(3)
                                                    Registration No. 333-83173



Prospectus


                        Andrea Electronics Corporation
                               2,791,891 Shares
                                 Common Stock


         This prospectus relates to 2,791,891 shares of our common stock which
may be sold from time to time by the selling stockholders, including their
transferees.

         We will not receive any of the proceeds from the sale of these
shares, although we have paid the expenses of preparing this prospectus and
the related registration statement.

         Our common stock is quoted on the American Stock Exchange under the
symbol "AND." On February 9, 2001, the last reported sale price for the common
stock on the American Stock Exchange was $2.31 per share.





Investing in the common stock involves a high degree of risk. You should
carefully read the "risk factors" section of this prospectus beginning on page
4 of this prospectus.



Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved these securities or determined whether
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.









               The date of this prospectus is February 21, 2001





                               TABLE OF CONTENTS

PROSPECTUS SUMMARY...................................................2
RISK FACTORS.........................................................4
ANDREA ELECTRONICS..................................................11
FORWARD LOOKING STATEMENTS..........................................13
USE OF PROCEEDS.....................................................13
SELLING STOCKHOLDERS................................................13
DESCRIPTION OF CAPITAL STOCK........................................16
NEW YORK ANTI-TAKEOVER LAW..........................................29
PLAN OF DISTRIBUTION................................................30
MANAGEMENT..........................................................32
LEGAL MATTERS.......................................................40
EXPERTS.............................................................40
WHERE YOU CAN FIND MORE INFORMATION.................................40
INCORPORATED DOCUMENTS..............................................41









                              Prospectus Summary

         This summary may not contain all of the information that may be
important to you. You should read the entire prospectus before making an
investment decision. Our financial statements and related notes are not
included in this prospectus, but are incorporated by reference from the
documents listed under the caption "Incorporated Documents" located at the end
of this prospectus.

                              Andrea Electronics

         Andrea Electronics designs, develops and manufacturers
state-of-the-art audio technologies and equipment for enhancing applications
that require high performance and high quality voice input.

         Andrea's products and technologies optimize the performance of
speech-based applications software in markets such as:

          o    voice communication over the Internet;

          o    speech recognition and dictation to desktop, laptop and
               hand-held computers;

          o    audio/video conferencing;

          o    computer-based automobile monitoring and control systems for
               use by drivers and passengers;

          o    electronic equipment for incorporation into home appliances and
               industrial and commercial office equipment that is activated
               and controlled by voice; and

          o    interactive games where one or more players participate over
               the Internet.

         Our patented Active Noise Cancellation microphone and Active Noise
Reduction earphone technologies help to ensure clear speech in personal
computer and telephone headset applications. Active Noise Cancellation
microphone technology uses electronic circuits that distinguish a speaker's
voice from background noise in the speaker's environment and then cancels the
noise from the signal to be transmitted by the microphone. Active Noise
Reduction earphone technology uses electronic circuits that distinguish the
signal coming through an earphone from background noise in the listener's
environment and then reduces the noise heard by the listener.

         Our patented Andrea Digital Super Directional Array technology
enables the microphone to be several feet from the person speaking and frees
the speaker from having to hold the microphone. Our Andrea DSDA microphone
products convert sound received by the array of microphones in the product
into digital signals that are then processed to cancel background noise from
the signal to be transmitted. We are initially targeting our Andrea DSDA
microphone products at the market for personal computers designed for use in
automobiles to control sound systems, mobile telephones, satellite-based
navigation systems, windows, door locks and other devices.



                                      2




                                 The Offering

         On behalf of the selling stockholders identified later in this
prospectus, we are registering for resale 2,791,891 shares of common stock
comprised of:

          o 2,209,771 shares which are issuable in connection with the
     potential conversion of up to 348 shares of Series B convertible
     preferred stock, par value $0.01 per share, and upon the exercise of a
     warrant granted to the Series B holder; and

          o 582,120 shares of common stock which are currently outstanding and
     were issued in connection with our acquisition in May 1998 of Lamar
     Signal Processing, Ltd.

         The number of shares of common stock that we will issue in connection
with the conversion of the Series B convertible preferred stock may vary from
time to time depending on the prevailing market price of our common stock.

         You should read the following information about Andrea, together with
the more detailed information about the securities underlying this offering,
contained elsewhere in this prospectus. In particular, you should read the
section entitled "Risk Factors," which explains that your investment in shares
of our common stock involves a high degree of risk.


                                      3





                                 RISK FACTORS

         An investment in our common stock involves a high degree of risk. You
should consider carefully, along with other factors, the following risks and
should consult with your own legal, tax and financial advisors.

Our results of operations have been declining and we expect further losses in
2001.

         Our revenue for the year ended December 31, 1999 was approximately
$17.1 million compared to approximately $21.3 million in calendar 1998. For
the year ended December 31, 1999, we had a net loss of approximately $7.1
million versus a net loss of $6.4 million for the year ended December 31,
1998. For the first nine months ended September 30, 2000, our revenue was
approximately $11.7 million compared to revenues of approximately $13.3
million over the same period in 1999. For the first nine months ended
September 30, 2000, we had a net loss of approximately $7.0 million compared
to a net loss of approximately $5.2 million in the same period in 1999. To
remain competitive, we intend to continue incurring substantial research and
development, marketing and general and administrative expenses. In addition,
our acquisition of Lamar Signal Processing, Ltd. resulted in a substantial
amount of goodwill. The amortization of this goodwill had, and will continue
to have, a negative, non-cash impact on our results of operations.

If we fail to obtain additional capital, we may be required to significantly
reduce, or refocus, our operations and our business, results of operations and
financial condition could be materially and adversely effected.

         From time to time during the past several years, we have raised
additional capital from external sources. We expect to continue to have to
raise additional capital from external sources. These sources may include
private or public financings through the issuance of debt, convertible debt or
equity, or collaborative arrangements. Additional capital may not be available
on favorable terms, if at all. Additionally, we may only be able to obtain
funds through arrangements that require us to relinquish rights to our
products, technologies or potential markets.

Conversions of our Series B convertible preferred stock and Series C
convertible preferred stock may result in substantial dilution to other
holders of our common stock.

         Currently, we have 348 shares of Series B convertible preferred stock
and 750 shares of Series C convertible preferred stock outstanding. Both the
Series B convertible preferred stock and the Series C convertible preferred
stock are convertible into shares of common stock, subject to ownership
limitations that prohibit the holders of the preferred stock from owning more
than 4.99% of the outstanding shares of common stock at the time of conversion
or 9.99% over any sixty day period. These restrictions do not prevent
purchasers from converting and selling some of their holdings and then later
converting the rest of their holdings.

As the price of our common stock decreases, the number of shares of common
stock issuable upon conversion of our Series B convertible preferred stock and
Series C convertible preferred stock increases.


                                      4






         The variable conversion price of the Series B convertible preferred
stock and any reset of the conversion price of the Series C convertible
preferred stock are functions of the market price of our common stock. If the
price of our common stock decreases over time, the number of shares of common
stock issuable upon conversion of each series will therefore increase.

Sales of an increased number of shares of common stock issued upon conversion
of the Series B convertible preferred stock and the Series C convertible
preferred stock resulting from a declining market price for our common stock
can cause the market price of our common stock to decline further.

         Disregarding the manner in which the shares of common stock issued
upon conversion of the Series B convertible preferred stock and the Series C
convertible preferred stock are sold as well as any other factors such as
reactions to our operating results and general market conditions which may be
operative in the market as such time, an increase in the number of shares of
common stock eligible for sale can cause a decrease in the market price of our
common stock. This decrease could reduce the conversion prices of the Series B
convertible preferred stock and the Series C convertible preferred stock,
leading to a further increase in the number of shares of common stock issuable
upon future conversions and a further decline in our stock price.

If we are unable to obtain shareholder approval for issuances of common stock
upon conversions of our Series B convertible preferred stock and Series C
convertible preferred stock that exceed 19.99% of our outstanding common
stock, we may have to pay substantial penalties.

         Because there is no floor on the conversion prices of the Series B
convertible preferred stock and Series C convertible preferred stock, we may
ultimately be required to issue an amount of common stock exceeding 19.99% of
our outstanding common stock upon conversion of the Series B convertible
preferred stock and Series C convertible preferred stock. We cannot, however,
issue shares of common stock that would exceed 19.99% of our outstanding
common stock unless we obtain the approval of our shareholders. If we are
required to obtain this approval of our shareholders and we are unable to do
so, we will be forced to pay the holder of the Series B convertible preferred
stock and the Series C convertible preferred stock substantial penalties until
we obtain this approval. In addition, if shareholder approval is not obtained
by a required date, then the holder of the Series B convertible preferred
stock and Series C convertible preferred stock may force us to redeem all or a
portion of the preferred shares (the 19.99% test for each of the Series B
convertible preferred stock and the Series C convertible preferred stock is
calculated based on the number of shares of common stock outstanding on the
date of such issuances).

Short sales of our common stock may be attracted by or accompany conversions
of Series B convertible preferred stock and Series C convertible preferred
stock, which sales may cause downward pressure upon the price of our common
stock

         Short sales of our common stock may be attracted by or accompany the
sale of converted common stock, which in the aggregate could cause downward
pressure upon the price of the common stock, regardless of our operating
results, thereby attracting additional short sales of the common stock. The
result of conversions of the Series B and Series C convertible preferred stock


                                      5





at declining conversion prices would be increasing and substantial dilution of
the interests of the other holders of common stock.

         The varying numbers of shares of common stock issuable upon
conversion of the Series B convertible preferred stock and the Series C
preferred stock are illustrated in tables set forth elsewhere in this
prospectus respectively under the captions "Description of Capital
Stock--Preferred Stock--Series B Convertible Preferred Stock" and "Description
of Capital Stock--Preferred Stock--Series C Convertible Preferred Stock."

If we fail to market and commercialize our Andrea Anti-Noise and Andrea
Digital Super Directional Array products, our revenues may not increase at a
high enough rate to improve our results of operations or at all.

         Our business, results of operations and financial condition depend on
successful commercialization of our Andrea Anti-Noise and Andrea DSDA products
and technologies. Since we began sales of the initial Andrea Anti-Noise
products in 1995, we have been expanding the number of products in this line.
We introduced our first Andrea Digital Super Directional Array products in
1998 and we are initially targeting these products at the automobile
telematics market. The success of these products is subject to the risks
frequently encountered by companies in an early stage of product
commercialization, particularly companies in the computing and communications
industries.

If we are unable to obtain market acceptance of our voice interface and
Internet communications products and technologies or if market acceptance of
these products and technologies occurs at a slow rate, then our business,
results of operations and financial condition will be materially and adversely
affected.

         We and our competitors are focused on developing and commercializing
products and technologies that enhance the use of voice, particularly in noisy
environments, for a broad range of computer and communications applications.
These products and technologies have been rapidly evolving and the number of
our competitors has grown, but the markets for these products and technologies
are subject to a high level of uncertainty and have been developing slowly.
We, alone or together with our industry, may be unsuccessful in obtaining
market acceptance of these products and technologies.

If we fail to develop and successfully introduce new products and technologies
in response to competition and evolving technology, we may not be able to
attract new customers or retain current customers.

         The markets in which we sell our Andrea Anti-Noise and Andrea
DSDA microphone products and our traditional line of military and
industrial products are highly competitive. Most of our current and
potential competitors have significantly greater financial, technology
development, marketing, technical support and other resources than we do.
Consequently, these competitors may be able to respond more quickly to
new or emerging technologies and changes in customer requirements, or
devote greater resources to the development, marketing, and sale of their
products than we can. One or more of these competitors may independently
develop technologies that are substantially equivalent or superior
to our technology. In the markets for our traditional products,


                                      6




we often compete with major defense electronics corporations as well as
smaller manufacturing firms which specialize in supplying products and
technologies for specific military initiatives. We may not compete
successfully with any of our competitors.

         The introduction of products incorporating new technologies could
render our products obsolete and unmarketable and could exert price pressures
on existing products. We are currently engaged in the development of digital
signal processing products and technologies for the voice, speech and natural
language interface markets. We may not succeed in developing these new digital
signal processing products and technologies, and any of these new digital
signal processing products or technologies may not gain market acceptance.
Further, the markets for our products and technologies are characterized by
evolving industry standards and specifications that may require us to devote
substantial time and expense to adapt our products and technologies. We may
not successfully anticipate and adapt our products and technologies in a cost
effective and timely manner to changes in technology and industry standards or
to introductions of new products and technologies by others that render our
then existing products and technologies obsolete.

If our marketing collaborators do not effectively market those of their
products with which our products are included or incorporated, our sales
growth could be adversely affected.

         We have entered into several collaborative and distribution
arrangements with software publishers and computer hardware manufacturers
relating to the marketing and sale of Andrea Anti-Noise products and Andrea
DSDA microphone and software products through inclusion or incorporation with
the products of our collaborators. Our success will therefore be dependent to
a substantial degree on the efforts of these collaborators to market those of
their products with which our products are included or incorporated. Our
collaborators may not successfully market these products. In addition, our
collaborators generally are not contractually obligated to any minimum level
of sales of our products or technologies, and we have no control over their
marketing efforts. Furthermore, our collaborators may develop their own
microphone or earphone products that may replace our products or technologies
or to which they may give higher priority. We have also established direct
marketing arrangements with large electronic and computer retail chains in the
United States, as well as with distributors in Europe and the Americas. These
channels may not devote sufficient resources to support the sale of our
products.

If we fail to maintain sales of Andrea Anti-Noise products and Andrea DSDA
microphone and software products to IBM, we would experience a material
adverse effect on our business, results of operations and financial condition.

         We are substantially dependent on our product procurement
relationship with IBM. During the years ended December 31, 1997, 1998 and
1999, IBM and several of IBM's affiliates, distributors, licensees and
integrators accounted for 56%, 61% and 49%, respectively, and 59% during the
first nine months of 2000, of our sales revenue. IBM is not obligated to
purchase these products and is free to purchase microphone and earphone
products and technologies from our competitors.


                                     7





Shortages of, or interruptions in, the supply of more specialized components
for our Andrea Anti-Noise products and Andrea DSDA microphone products could
have a material adverse effect on our sales of these products.

         We conduct assembly operations at our facilities in New York and
Israel and through subcontractors using purchased components. Some specialized
components for the Andrea Anti-Noise and Andrea DSDA microphone products, such
as microphones and digital signal processing boards, are available from a
limited number of suppliers and subject to long lead times. We may not be able
to continue to obtain sufficient supplies of these more specialized
components, particularly if our sales of Andrea Anti-Noise and Andrea DSDA
microphone products increase substantially or market demand for these
components otherwise increases.

If our subcontractor fails to meet our production and shipment schedules, our
business, results of operations and financial condition would be materially
and adversely affected.

         We conduct assembly operations at our facilities in New York and
Israel and through subcontracting. During initial production runs of Andrea
Anti-Noise and Andrea DSDA microphone products, we perform assembly operations
at our New York facility from purchased components. As sales of any particular
product increase, assembly operations are primarily transferred to a
subcontractor in Asia.

Our ability to compete may be limited by our failure to adequately protect our
intellectual property or by patents granted to third parties.

         We rely on a combination of patents, patent applications, trade
secrets, copyrights, trademarks, nondisclosure agreements with our employees,
licensees and potential licensees, limited access to and dissemination of our
proprietary information, and other measures to protect our intellectual
property and proprietary rights. However, the steps that we have taken to
protect our intellectual property may not prevent its misappropriation or
circumvention. In addition, numerous patents have been granted to other
parties in the fields of noise cancellation, noise reduction, computer voice
recognition, digital signal processing and related subject matter. We expect
that products in these fields will increasingly be subject to claims under
these patents as the numbers of products and competitors in these fields grow
and the functionality of products overlap. Claims of this type could have an
adverse effect on our ability to manufacture and market our products or to
develop new products and technologies, because the parties holding these
patents may refuse to grant licenses or only grant licenses with onerous
royalty requirements. Moreover, the laws of other countries do not protect our
proprietary rights to our technologies to the same extent as the laws of the
United States.

An unfavorable ruling in any current litigation proceeding or future
proceeding may adversely affect our business, results of operations and
financial condition.

         From time to time we are subject to litigation incidental
to our business. For example, we are subject to the risk of adverse
claims, interference proceedings before the U.S. Patent and Trademark
Office, oppositions to patent applications outside the United States,
and litigation alleging infringement of the proprietary rights of
others. Litigation to establish the validity of


                                      8




patents, to assert infringement claims against others, and to defend against
patent infringement claims can be expensive and time-consuming, even if the
outcome is in our favor.

         As more fully disclosed in "Item 3. Legal Proceedings" in our annual
report on Form 10-K for the year ended December 31, 1999, on November 17, 1998
a complaint was filed against us in the U.S. District Court for the Eastern
District of New York by NCT Group, Inc. and NCT Hearing Products, Inc., one of
NCT's subsidiaries, requesting a declaration that two of our patents, which
relate to active noise reduction technology applicable to aircraft passenger
headphones, are invalid and unenforceable and that these patents are not being
infringed by NCT's products. The complaint also seeks to enjoin us from
engaging in certain alleged activities and seeks compensatory damages of not
less than $5 million, punitive damages of not less than $50 million and
plaintiffs' costs and attorneys' fees.

         On December 30, 1998, we filed and served an answer to the NCT
complaint, denying the allegations and asserting affirmative defenses and
counterclaims. The counterclaims seek injunctive relief for patent
infringement, trademark infringement, false designation of origin and unfair
competition. We are also seeking exemplary and punitive damages, prejudgment
interest on all damages, costs, reasonable attorneys' fees and expenses.
During the second half of 1999, both NCT and Andrea submitted briefs to the
court on whether to have an early hearing on the meaning of the claims in the
two Andrea patents. This type of hearing is called a "Markman Hearing." We are
unable to anticipate when the court will issue a decision on this question. We
and NCT are proceeding with discovery, including document production and
depositions. If this suit is ultimately resolved in favor of NCT, we could be
materially adversely effected. We believe, however, that NCT's allegations are
without merit and we intend to vigorously defend ourselves and to assert
against NCT the claims described above.

         On March 11, 1999, we were notified about a claim filed with the New
York State Environmental Protection and Spill Compensation Fund by the owners
(Mark J. Mergler and Ann Mergler) of property adjoining our former Long Island
City facility. This claim alleges property damages arising from petroleum
migrating from our former facility and was purportedly detected in the
basement of the claimants' property. In their claim to the fund, the claimants
alleged that their property has been damaged and that they have incurred
remedial costs. In the event the fund honors this claim in whole or in part,
we may be liable to reimburse the fund. The New York State Department of
Environmental Conservation has asserted a demand that we investigate and
remediate the discharge of petroleum from a fuel oil storage tank at our
former Long Island City facility, and determine whether the petroleum
discharge has migrated to the claimants' adjoining property.

         We engaged environmental consultants to investigate the discharge
from the fuel oil storage tank and we are currently funding remediation work.
We denied, however, the allegations that any petroleum discharge has migrated
to the claimant's property and objected to the claim made by the claimant to
the fund. On September 2, 1999, a civil action related to this matter was
commenced in the Nassau County Supreme Court by Mark J. Mergler and Ann
Mergler. The plaintiffs allege that the fuel oil released from the heating
system of our former facility has migrated beneath and onto the neighboring
property causing in excess of $1,000,000 in direct and consequential
damages.  The plaintiffs' allegations against us include, negligence,
nuisance and strict liability under the New York State Navigation Law. We
have submitted an answer denying the allegations and all liability


                                      9







relating to the alleged property damage. This lawsuit is at an early stage and
we are unable to evaluate the likelihood of an unfavorable outcome or estimate
the amount or range of potential loss, if any.

Changes in economic and political conditions outside the United States could
adversely affect our business, results of operations and financial condition.

         We have been seeking to increase our sales to regions outside the
United States, particularly in Europe and areas in the Americas and Asia. For
the year ended December 31, 1999, sales to customers outside the United States
accounted for approximately 35% of our sales revenue. International sales and
operations are subject to a number of risks, including:

          o    trade restrictions in the form of license requirements;

          o    restrictions on exports and imports and other government
               controls;

          o    changes in tariffs and taxes;

          o    difficulties in staffing and managing international operations;

          o    problems in establishing and managing distributor
               relationships;

          o    general economic conditions; and

          o    political and economic instability or conflict.

         To date, we have invoiced our international sales in U.S. dollars,
and have not engaged in any foreign exchange or hedging transactions. We may
not continue to be able to invoice all our sales in U.S. dollars and to avoid
engaging in foreign exchange or hedging transactions. If we are required to
invoice any material amount of international sales in non-U.S. currencies,
fluctuations in the value of non-U.S. currencies relative to the U.S. dollar
may adversely affect our business, results of operations and financial
condition or require us to incur hedging costs to counter such fluctuations.

If we are unable to attract and retain the necessary managerial, technical and
other personnel necessary for our business, then our business, results of
operations and financial condition will be harmed.

         Our performance is substantially dependent on the performance of our
executive officers and key employees. The loss of the services of any of these
executive officers or key employees could have a material adverse effect on
our business, results of operations and financial condition. Our future
success depends on our continuing ability to attract and retain additional
highly qualified managers and technical personnel. Competition for qualified
personnel is intense and we may not be able to attract, assimilate or retain
qualified personnel in the future.


                                      10





                              ANDREA ELECTRONICS

         Our mission is to provide the emerging "voice interface" markets with
state-of-the-art communications products. The idea underlying these markets is
that natural language spoken by the human voice will become an important means
by which to control many types of computing devices and other appliances and
equipment that contain microprocessors. We are designing and marketing our
products and technologies to be used for these "natural language,
human/machine" interfaces with:

          o    desktop, laptop and hand-held computers and mobile personal
               computing devices;

          o    military and commercial aircraft systems;

          o    cellular and other wireless communication devices; and

          o    automotive communication systems.

         We believe that end users of these applications and interfaces will
require high quality microphone and earphone products that enhance voice
transmission, particularly in noisy environments. To develop these products,
we are utilizing digital signal processing technology. This technology
converts voice signals to digital signals which can then be processed in
microprocessors and similar electronic devices to reduce external interference
and increase clarity. In order to further our efforts to develop digital
signal processing technology, in May 1998, we acquired Lamar Signal
Processing, Ltd., an Israeli corporation engaged in the development of noise
cancellation microphones covering a wide range of audio and acoustic
applications.

         High quality audio communication technologies is also required for
emerging applications for microphones located several feet from the person
speaking, or far-field microphone technology. Applications in this area range
include:

          o    continuous speech dictation to personal computer and personal
               data assistants;

          o    multiparty video teleconferencing and software that allows
               participants to see and jointly edit documents, spreadsheets
               and other information;

          o    natural language-driven interfaces for automobiles, home and
               office automation.

We believe that an increasing number of these devices will be introduced
during the next several years.

         We outsource the assembly of most of our Andrea Anti-Noise products
from purchased components, and we are currently assembling our Andrea DSDA
microphone and software products from purchased components at our New York and
Israeli facilities. We manufacture our Aircraft Communications products at our
New York facility.

         Our strategy is to

          o    maintain and extend our market position with our Andrea
               Anti-Noise products;

          o    broaden our Andrea Anti-Noise product lines and Andrea DSDA
               microphone and software product lines through internal research
               and development and, from time to time, strategic acquisitions;

          o    design our products to satisfy specific end-user requirements
               identified by our collaborative partners; and

          o    outsource manufacturing of some of our products in order to
               achieve economies of scale.

         An important element of our strategy for expanding the channels of
distribution and broadening the base of users for our products is our
collaborative arrangements with manufacturers of computing and communications
equipment, software publishers, and distributors and retailers actively
engaged in the various markets in which our products have application. Under
some of these arrangements, we supply our products for sale by our
collaborative partners. Under others, the collaborative partners supply us
with software that we include with our products. In addition, we have been
increasing our own direct marketing efforts.

         The success of our strategy will depend on our ability to, among
other things,

          o    increase sales of our line of existing Andrea Anti-Noise
               products and Andrea DSDA microphone and software products,

          o    contain costs,

          o    manage growth,

          o    introduce additional Andrea Anti-Noise products and Andrea DSDA
               microphone and software products,

          o    maintain the competitiveness of our technologies through
               successful research and development, and

          o    achieve widespread adoption of our products and technologies.

         The interim results of operations of Andrea that are presented in
this report are not necessarily indicative of the actual sales or results of
operations to be realized for the full year.

         We are incorporated under the laws of the State of New York and have
been engaged in the electronic communications industry since 1934. For several
decades prior to our entry into the voice-activated computing market in the
1990's, our primary business was selling intercom systems for military and
industrial use. We continue to manufacture replacement parts for these
systems, but we do not expect revenue from this business to increase
materially. We are seeking to apply our knowledge of the military and
industrial markets to develop applications of our Andrea Anti-Noise
technologies for these markets. Our efforts may not succeed, and we do not
expect any material revenues from such new products for the foreseeable
future.


                                      12





                          FORWARD LOOKING STATEMENTS

         We make certain "forward-looking statements" within the meaning of
Section 27A of the Securities Act of 1933, as amended, and Section 21E of the
Securities Exchange Act of 1934, as amended, throughout this prospectus and in
the documents we incorporate by reference into this prospectus. The words
"anticipates," "believes," "estimates," "expects," "intends," "plans,"
"seeks," variations of such words, and similar expressions are intended to
identify forward-looking statements. We have based these forward-looking
statements on our current expectations, estimates and projections about our
business and industry, our beliefs and certain assumptions made by our
management. Investors are cautioned that matters subject to forward-looking
statements involve risks and uncertainties including economic, competitive,
governmental, technological and other factors which may affect our business
and prospects.

         These statements are not guarantees of future performance and are
subject to certain risks, uncertainties and assumptions that are difficult to
predict. Important factors which could cause our actual results to differ
materially from the forward-looking statements in this prospectus include, but
are not limited to, those identified in this prospectus under "Risk Factors"
and those described in Management's Discussion and Analysis of Financial
Condition and Results of Operations in our Form 10-K for the fiscal year ended
December 31, 1999, our Form 10-Q for the quarter ended March 31, 2000, our
Form 10-Q for the quarter ended June 30, 2000, our Form 10-Q for the quarter
ended September 30, 2000 and in any other filings which are incorporated by
reference in this prospectus.

         You should read this prospectus and the documents that we incorporate
by reference into this prospectus completely and with the understanding that
our actual future results may be materially different from what we expect.
Forward-looking statements in this prospectus speak only as of the date of
this prospectus. We have ongoing disclosure obligations under the federal
securities laws to file periodic quarterly and annual reports as well as
current reports that cover events that are material to our business, results
of operations and financial condition. These reports could contain information
that reflect subsequent developments relating to forward-looking statements in
this prospectus. All forward-looking statements attributable to us are
expressly qualified by these cautionary statements.


                                USE OF PROCEEDS

         All of the shares of common stock offered hereby are being offered
for the account of the selling stockholders. We will not receive any proceeds
from the sale by the selling stockholders of the common stock made pursuant to
this registration statement.


                             SELLING STOCKHOLDERS

         We are registering the shares in order to permit the selling
stockholders to offer the shares of common stock for resale from
time to time.  The shares of common stock being offered by one of
the selling stockholders, HFTP, are issuable upon conversion of
the Series B convertible preferred stock and the exercise of a
warrant. For additional information regarding the Series B convertible


                                      13





preferred stock, see "Description of Capital Stock -- Preferred Stock." None
of the selling stockholders has had any material relationship with us in the
past three years.

         The following table sets forth the names of the selling stockholders,
the number of shares of common stock owned beneficially by each of them as of
February 9, 2001, calculated in the manner described below, the number of
shares which may be offered pursuant to this prospectus and the number of
shares and percentage of class to be owned by each selling stockholder after
this offering.

         For HFTP Investment L.L.C. the second column lists the number of
shares of common stock held, plus the number of shares of common stock, based
on its ownership of Series B convertible preferred stock and related warrants
as well as Series C convertible preferred stock, that would have been issuable
to the selling stockholder as of February 9, 2001 assuming conversion of all
Series B and Series C convertible preferred stock and exercise of the warrants
issued in connection with the Series B convertible preferred stock held by the
selling stockholder on that date, without regard to any limitations on
conversions or exercise. Because conversion of the Series B and Series C
convertible preferred stock is based on a formula that may depend on the
market price of our common stock, the numbers listed in the second column may
fluctuate from time to time. The third column lists the shares of common stock
being offered by this prospectus by the selling stockholders.

          In accordance with the terms of the registration rights agreement
 with the holder of the Series B convertible preferred stock, this prospectus
 covers the resale of at least that number of shares of common stock equal to
 the product of 2.0 and the number of shares of common stock issuable upon
 conversion of the Series B convertible preferred stock, determined as if the
 outstanding Series B convertible preferred stock was converted in full as of
 the date immediately preceding the filing of the registration statement of
 which this prospectus is a part. Because of adjustments to the conversion
 price based on the market price of our common stock or upon dilutive
 issuances, the number of shares that will actually be issued upon conversion
 of the Series B convertible preferred stock may be more or less than the
 2,209,771 shares being offered by this prospectus for the holder of the
 Series B convertible preferred stock.

          The fourth column assumes the sale of all of the shares offered by
 the selling stockholder pursuant to this prospectus.

         Under the certificate of amendment for the Series B and Series C
convertible preferred stock, the holder is prohibited from converting the
Series B or Series C convertible preferred stock, or from exercising the
warrants issued in connection with the Series B convertible preferred stock,
in some circumstances. For more information about this limitation, please see
"--Description of Capital Stock--Series C Convertible Preferred
Stock--Limitations on Conversion." The number of shares in the second column
and fourth column and the percentage in the fifth column for HFTP does not
reflect this limitation.

         The selling stockholders may sell all, some or none of their shares
in this offering. See "Plan of Distribution."


                                      14





         The 582,120 shares of common stock currently outstanding which are
being offered by the selling stockholders other than HFTP under this
prospectus are part of the 1,800,000 shares of common stock issued as
consideration for our acquisition of Lamar Signal Processing, Ltd.

         The "Shares Beneficially Owned After the Offering" column assumes the
sale of all shares offered. The "Percentage of Class" column is based on
14,759,087 shares of common stock outstanding as of February 9, 2001.






                                                                                           Shares
                                              Shares                                    Beneficially
                                           Beneficially          Shares Offered             Owned
                                          Owned Prior To            By This                 After            Percentage
         Selling Stockholder               The Offering            Prospectus           The Offering          Of Class
         -------------------              --------------         --------------         ------------         ----------

                                                                                                   
HFTP Investment L.L.C.(1)                   4,452,340               2,209,771            2,242,569             12.1%

Joseph Marsh (2)                              512,733                 170,911              341,822              2.3

Remano B.V. (3)                               512,733                 170,911              341,822              2.3

Cherry Hill LLC (4)                           144,738                  96,492               48,246              *

Marla LLC (5)                                 144,663                  96,442               48,221              *

More Capital Services, Inc. (6)               106,920                  35,640               71,280              *

Knighthawk Investment LLC (7)                  98,904                  65,936               32,968              *

Ventnor LLC (8)                                92,835                  30,945               61,890              *

Baruch Berdugo (9)                             89,100                  29,700               59,400              *

Ze'ev Steiner (10)                             43,734                  14,578               29,156              *



- ----------------
*    Represents less than 1%.

(1)  In addition to the 2,678,217 shares issuable as of February 9, 2001 upon
     conversion of the Series B preferred stock and the exercise of the
     related warrants, includes up to1,080,613 shares of common stock issuable
     upon conversion of the Series C convertible preferred stock held of
     record by HFTP Investment LLC, without regard to any limitations on
     conversions or exercises, plus additional shares of common stock which
     HFTP holds or has the right to acquire as of February 9, 2001. Promethean
     Asset Management, LLC, a New York limited liability company, serves as
     investment manager to HFTP Investment L.L.C. and may be deemed to share
     beneficial ownership of the shares beneficially owned by HFTP by reason
     of shared power to vote and to dispose of the shares beneficially owned
     by HFTP. Promethean disclaims beneficial ownership of the shares
     beneficially owned by HFTP. Mr. James F. O'Brien, Jr. indirectly controls
     Promethean. Mr. O'Brien disclaims beneficial ownership of the shares
     beneficially owned by Promethean and HFTP. HFTP is not a registered
     broker-dealer. HFTP, however, is under common control with, and therefore
     an affiliate of, Promethean Capital Group LLC which is a registered
     broker-dealer.

(2)  Includes 170,911 shares of common stock subject to trading restrictions
     that expire on May 5, 2001.

(3)  Includes 170,911 shares of common stock subject to trading restrictions
     that expire on May 5, 2001.


                                      15





(4)  Includes 48,246 shares of common stock subject to trading restrictions
     that expire on May 5, 2001. The natural person having the ultimate voting
     power over the ordinary shares owned by Cherry Hill LLC is Fred Knoll.

(5)  Includes 48,221 shares of common stock subject to trading restrictions
     that expire on May 5, 2001. The natural person having the ultimate voting
     power over the ordinary shares owned by Marla LLC is Fred Knoll.

(6)  Includes 35,640 shares of common stock subject to trading restrictions
     that expire on May 5, 2001. The natural person having the ultimate voting
     power over the ordinary shares owned by More Capital Services, Inc. is
     Fred Knoll.

(7)  Includes 32,968 shares of common stock subject to trading restrictions
     that expire on May 5, 2001. The natural person having the ultimate voting
     power over the ordinary shares owned by Knighthawk Investment LLC is Fred
     Knoll.

(8)  Includes 30,945 shares of common stock subject to trading restrictions
     that expire on May 5, 2001. The natural person having the ultimate voting
     power over the ordinary shares owned by Ventnor LLC is Fred Knoll.

(9)  Includes up to 29,700 shares of common stock subject to trading
     restrictions that expire on May 5, 2001.

(10) Includes up to 14,578 shares of common stock subject to trading
     restrictions that expire on May 5, 2001.


                         DESCRIPTION OF CAPITAL STOCK

           As of February 9, 2001 our authorized capital stock totaled
40,000,000 shares, consisting of:

          (1)  35,000,000 shares of common stock, par value $.50 per share, of
               which 14,759,087 shares were issued and outstanding; and

          (2)  5,000,000 shares of preferred stock, par value $.01 per share,
               of which

          (a)  25,000 shares were designated Series A junior participating
               preferred stock, none of which were issued and outstanding,

          (b)  1,500 shares were designated as Series B convertible preferred
               stock, of which 348 shares were issued and outstanding,

          (c)  1,000 shares were designated Series C preferred stock, of which
               750 shares were issued and outstanding and

          (d)  4,973,500 shares of preferred stock which have not been
               designated.

         Of the 14,759,087 shares of common stock outstanding on February 9,
2001, this amount does not include 5,243,125 shares of common stock reserved
for issuance upon exercise of options granted under our 1991 Performance
Equity Plan and 1998 Stock Plan.

Common Stock

         The holders of our common stock are entitled to one vote per share on
all matters to be voted on by shareholders and are entitled to receive
dividends when declared by our board of directors, at their discretion, from
legally available funds. The holders of our common stock are not


                                      16





entitled to preemptive, subscription or conversion rights, and there are no
redemption or sinking fund provisions applicable to our common stock.

         Upon liquidation or dissolution, the holders of our common stock are
entitled to receive all assets available for distribution to shareholders,
subject to the preferential rights of the holders of Series B and Series C
convertible preferred stock and any other series of preferred stock that may
be then outstanding.

Preferred Stock

         Shares of preferred stock are issuable in one or more series at the
time or times and for the consideration as our board of directors may
determine. All shares of each series of preferred stock shall be equal in rank
and identical in all respects. Authority is expressly granted to our board of
directors to fix from time to time, by resolution or resolutions providing for

          o    the establishment and/or issuance of any series of preferred
               stock,

          o    the designation of any series of preferred stock,

          o    the powers, preferences and rights of the shares of that
               series, and

          o    the qualifications, limitations or restrictions of the
               preferred stock.

         We currently have designated three series of preferred stock. Each
series of preferred stock is summarized below. While we have no present
intention to issue shares of any additional series of preferred stock, any
such issuance could dilute the equity of the outstanding shares of common
stock and could have the effect of making it more difficult for a third party
to acquire a majority of our outstanding voting stock. In addition, any newly
issued preferred stock may have other rights, including economic rights senior
to the common stock, and, as a result, the issuance thereof could have a
material adverse effect on the market value of the common stock.

         Series A Junior Participating Preferred Stock

         Under our Shareholder Rights Plan, preferred stock purchase rights
were distributed as a dividend at the rate of one right for each share of
common stock outstanding as of the close of business on May 7, 1999. Each
purchase right entitles the holder to purchase one-thousandth of a share of
our Series A junior participating preferred stock, par value $0.01 per share,
at an exercise price of $50. These purchase rights will not be exercisable
unless a person or group acquires, or announces the intent to acquire,
beneficial ownership of 20% or more of our common stock.

         Each share of Series A junior participating preferred stock shall
entitle the holder to 1,000 votes on all matters submitted to a vote of our
stockholders.

         Subject to the rights of the holders of any series of preferred stock
ranking senior to the Series A junior participating preferred stock with
respect to dividends, each holder of a share of Series A junior participating
preferred stock, in preference to the holders of shares of common stock, will
be entitled to a dividend equal to one thousand times any dividend declared
per share of common stock.


                                      17





         Upon our liquidation or dissolution, holders of Series A junior
participating preferred stock are entitled to

          (1)  $1,000 per share, plus accrued and unpaid dividends and
               distributions, or an aggregate amount per share (subject to
               adjustment) equal to 1,000 times the aggregate amount to be
               distributed per share to holders of common stock, before we
               make any distributions to the holders of stock ranking junior
               to the Series A junior participating preferred stock, or

          (2)  pro rata distributions in proportion to the total amounts to
               which all holders of stock ranking in parity with the Series A
               junior participating preferred stock are entitled before we
               make any distributions to those other holders.

         In the case of any consolidation, merger, combination or other
transaction in which shares of common stock are exchanged, each share of
Series A junior participating preferred stock shall be similarly exchanged
into an amount per share equal to 1,000 times the aggregate amount of stock,
securities, cash and/or any other property (payable in kind), as the case may
be, into which each share of common stock is exchanged.

         The Series A junior participating preferred stock ranks, with respect
to the payment of dividends and the distribution of assets, junior to all
series of any other class of preferred stock. Whenever dividends or
distributions payable on the Series A junior participating preferred stock are
in arrears, we cannot, until all accrued and unpaid dividends and
distributions, whether or not declared, on the Series A junior participating
preferred stock outstanding have been paid:

          o    declare or pay dividends, or make any other distributions, on
               any stock ranking junior to the Series A junior participating
               preferred stock;

          o    declare or pay dividends, or make any other distributions, on
               any stock ranking on a parity with the Series A junior
               participating preferred stock, except dividends paid ratably on
               the Series A junior participating preferred stock and all such
               parity stock on which dividends are payable or in arrears in
               proportion to the total amounts to which the holders of all
               such shares are then entitled;

          o    redeem or purchase or otherwise acquire any stock ranking
               junior to the Series A junior participating preferred stock,
               provided that we may at any time redeem, purchase or otherwise
               acquire shares of any such junior stock in exchange for any of
               our stock ranking junior to the Series A junior participating
               preferred stock; or

          o    redeem or purchase or otherwise acquire any Series A junior
               participating preferred stock, or any shares of stock ranking
               on a parity with the Series A junior participating preferred
               stock, except in accordance with a purchase offer made in
               writing or by publication to all holders of such shares upon
               such terms as the board of directors shall determine in good
               faith will result in fair and equitable treatment among the
               respective series or classes.


                                      18





         The shares of Series A junior participating preferred stock are also
subject to antidilution provisions which are triggered in the event of stock
splits, recapitalizations, or other dilutive transactions. The Series A junior
participating preferred stock is not redeemable.

         Series B Convertible Preferred Stock

         As of February 9, 2001, we had outstanding 348 shares of Series B
convertible preferred stock.

         The following is a summary of the material terms of the Series B
convertible preferred stock. The underlying documents for the Series B
convertible preferred stock are a securities purchase agreement, registration
rights agreement and a certificate of amendment, all filed as exhibits to our
Form 8-K dated June 22, 1999.

         750 shares of Series B convertible preferred stock and related
warrants for 75,000 shares of common stock were issued and sold on June 18,
1999 to HFTP Investment LLC for total gross proceeds of $7,500,000. We used
the proceeds from the offering of the Series B convertible preferred stock for
working and general corporate purposes, including the expansion of our sales
and marketing capabilities for the commercialization of our anti-noise
products and the expansion of our research and development activities.

General terms of the Series B convertible preferred stock

         The holders of our Series B convertible preferred stock have no
voting rights other than provided by law, except to the extent such holders
own shares of common stock. The holders of the Series B convertible preferred
stock are not entitled to receive dividends. However, the holders are entitled
to receive an additional amount in cash or shares of common stock, at our
option, upon conversion of their Series B convertible preferred stock. The
additional amount is calculated based on an annual premium of 4% on the
$10,000 per share value of the Series B convertible preferred stock.

Conversion

         Each share of Series B convertible preferred stock is convertible
into shares of our common stock. The number of shares of common stock into
which a share may be converted, or the conversion rate, is equal to $10,000
divided by the conversion price of the Series B convertible preferred stock.
The conversion price is variable and, at the time of conversion, will be equal
to the average of the two lowest closing bid prices of our common stock during
the 15 consecutive trading days immediately preceding conversion. However, the
conversion price cannot exceed $8.775. There is no minimum conversion price,
but the number of shares that may be converted at any one time is limited. For
more information about these limitations, see "--Series C Convertible
Preferred Stock--Limitations on Conversion."

         Any unconverted Series B convertible preferred shares that remain
outstanding on June 18, 2004, will automatically convert into common stock. We
have reserved 4,916,630 shares of common stock for issuance upon conversion of
the shares of the Series B convertible preferred stock.


                                      19




         The following table illustrates the varying amounts of shares of
common stock issuable upon conversion of all 348 shares of Series B
convertible preferred stock at the indicated conversion prices (without regard
to any limitations on conversion) and assuming that the 4% additional amount
is paid in cash:





                               Number of Shares of Common Stock     Percentage of Outstanding
         Conversion Price        Issuable Upon Conversion(1)             Common Stock(2)
         ------------------------------------------------------------------------------------
                                                                        
               $1.00                   3,480,000                                19.1
               $2.00                   1,740,000                                10.5
               $3.00                   1,160,000                                 7.3
               $4.00                     870,000                                 5.6
               $5.00                     696,000                                 4.5
               $6.00                     580,000                                 3.8
               $7.00                     497,143                                 3.3
               $8.00                     435,000                                 2.9



(1)  The Series B holder is prohibited from converting the Series C or Series
     B convertible preferred stock, or from exercising the warrants issued in
     connection with the Series B convertible preferred stock, in some
     circumstances. For more information about this limitation, please see
     "--Series C Convertible Preferred Stock--Limitations on Conversion."

(2)  Based on 14,759,087 shares of common stock outstanding as of February 9,
     2001.

Redemption

         The holder of the Series B convertible preferred stock has the right
to require us to redeem all or a portion of its shares upon the announcement
of a major transaction or the happening of a triggering event. Major
transactions include a merger, consolidation, tender offer or sale of
substantially all our assets. Triggering events include a default under our
registration obligations with respect to the Series B convertible preferred
stock, the delisting of our common stock and a default with respect to our
conversion obligations, among other things.

         The redemption price upon the happening of these events would be
equal to the greater of $12,000 plus 120% of any additional amounts described
above, and

          o    in the case of a major transaction, the product of the
               conversion rate in effect for the Series B convertible
               preferred stock multiplied by the closing bid price on the date
               of the public announcement of the transaction;

          o    in the case of a triggering event, the product of the
               conversion rate in effect for the Series B convertible
               preferred stock multiplied by the closing bid price immediately
               before the triggering event or on the date of the holder's
               redemption notice.

We may also be subject to penalty payments upon the happening of events
excluded from the definition of triggering events or resulting from a default
in our redemption obligations.


                                      20





Registration of shares

         Under the terms of the registration rights agreement, we were
obligated to register the common stock issuable upon conversion of the Series
B convertible preferred stock. We were required by this agreement to initially
register with the Commission the resale of at least the number of shares of
common stock equal to the product of

          (a)  2.0 and

          (b)  the number of initial registrable securities (without regard to
               any limitation on conversion).

Other terms

         The transaction documents relating to the Series B convertible
preferred stock contain, other representations, warranties, agreements and
indemnification obligations of Andrea. The operative agreements

          o    restrict our ability to redeem, pay any cash dividends and make
               certain distributions on our common stock,

          o    limit our ability to issue any senior preferred stock, and

          o    prohibit us from entering into certain related party
               transactions except as set forth in the securities purchase
               agreement.

The shares of Series B convertible preferred stock are also subject to
antidilution provisions which are triggered in the event of certain stock
splits, recapitalizations, or other dilutive transactions, as well as
issuances of common stock at a price below $8.775, or the issuance of
warrants, options, rights, or convertible securities which have an exercise
price or conversion price less than $8.775, other than for certain previously
outstanding securities and certain "excluded securities" (as defined in the
certificate of amendment). In the event that we issue securities in the future
which have a conversion price or exercise price which varies with the market
price and the terms of such variable price are more favorable than the
conversion price in the Series B convertible preferred stock, the purchasers
may elect to substitute the more favorable variable price for the conversion
price of the Series B convertible preferred stock.

         Series C Convertible Preferred Stock

         The following is a summary of the material terms of the Series C
convertible preferred stock. The underlying documents for the Series C
convertible preferred stock are a securities purchase agreement, registration
rights agreement and a certificate of amendment, all filed as exhibits to our
Form 8-K dated October 12, 2000.

The closings

         The purchase and sale of our Series C convertible preferred
stock consisted of one closing with, if necessary, up to two additional
closings to follow in the event the holder of the Series C


                                      21





convertible preferred stock exercises its option to purchase additional
shares, as described below. At the initial closing of the transaction on
October 10, 2000, the holder of the Series C convertible preferred stock
purchased from us an aggregate of 750 shares of Series C convertible preferred
stock for total gross proceeds to us of $7,500,000. The initial closing was
subject to customary closing conditions.

         During the period beginning on October 10, 2000, the initial closing
date, and ending on April 11, 2002, the holder of the Series C convertible
preferred stock, on not more than two occasions, may purchase from us up to an
additional 250 shares of the Series C convertible preferred stock for up to an
additional $2,500,000. The conditions to the additional closings include

          o    that our representations in the transaction documents are true
               and correct as of the date of the additional closing,

          o    our common stock is listed with The American Stock Exchange,

          o    we deliver all required certificates, opinions, and documents
               required under the securities purchase agreement, and

          o    satisfaction of other terms and conditions, all as more fully
               set forth in the securities purchase agreement.

         We are using the proceeds from the offering of the Series C
convertible preferred stock, including the initial closing and any additional
closing, for working capital and general corporate purposes, including the
expansion of our sales and marketing capabilities for the commercialization of
our anti-noise products and the expansion of our research and development
activities.

General terms of the Series C convertible preferred stock

         The holders of our Series C convertible preferred stock have no
voting rights other than provided by law, except to the extent such holders
own shares of common stock. The holders of the Series C convertible preferred
stock are not entitled to receive dividends. However, the holders are entitled
to receive an additional amount in cash or shares of common stock, at our
option, upon conversion of their Series C convertible preferred stock. The
additional amount is calculated based on an annual premium of 5% on the
$10,000 per share value of the Series C convertible preferred stock.

         In the event of our liquidation or dissolution, the holders of the
Series C convertible preferred stock shall be entitled to receive in cash out
of our assets an amount per share of equal to $10,000 plus the additional
amount described above. The holders of Series C convertible preferred stock
will receive these amounts in preference to our common stock and any other
junior class of our capital stock, including the Series A junior participating
preferred stock.

Conversion

         Each share of Series C convertible preferred stock is convertible
into shares of our common stock. The number of shares of common stock
into which a share may be converted, or the conversion rate, is equal
to $10,000 divided by the conversion price of the Series C convertible


                                      22




preferred stock. The conversion price is initially equal to $7.0565 for the
first nine months after the initial issuance date. After the first nine
months, the conversion price may be adjusted downward at reset dates, which
occur every six months. The reset would be to the average of the two lowest
closing bid prices of the common stock during the five consecutive trading
days immediately preceding the six-month reset dates if that average is less
than the then applicable conversion price. There is no minimum conversion
price, but the number of shares that may be converted at any one time is
limited. For more information about these limitations, see "--Limitations on
Conversion." The applicable conversion price during all time periods is
subject to adjustment, as provided in the certificate of amendment setting
forth the rights, privileges and preferences of the Series C convertible
preferred stock.

         Any outstanding shares of Series C convertible preferred stock will
convert automatically into common stock at the conversion price in effect on
the maturity date of the Series C convertible preferred stock. The maturity
date is initially the two-year anniversary of issuance, but may be extended
under circumstances set forth in the certificate of amendment. For the period
beginning on the two-year anniversary and ending on the maturity of the Series
C convertible preferred stock, the applicable conversion price shall be the
least of

          o    the then applicable conversion price,

          o    the average of the two lowest closing bid prices of the common
               stock during the 15 consecutive trading days immediately
               preceding the two-year anniversary, and

          o    the closing bid price on the date of conversion.

         The following table illustrates the varying amounts of shares of
common stock that would be issuable upon conversion of all outstanding 750
shares of Series C convertible preferred stock at the indicated conversion
prices (without regard to any limitations on conversion) and assuming that the
5% additional amount is paid in cash:





                                Number of Shares of Common Stock        Percentage of Outstanding
       Conversion Price           Issuable Upon Conversion(1)                 Common Stock(2)

                                                                             
             $1.00                           7,500,000                             33.7
             $2.00                           3,750,000                             20.3
             $3.00                           2,500,000                             14.5
             $4.00                           1,875,000                             11.3
             $5.00                           1,500,000                              9.2
             $6.00                           1,250,000                              7.8
             $7.00                           1,071,429                              6.8




(1)  The Series C holder is prohibited from converting the Series C or Series
     B convertible preferred stock, or from exercising the warrants issued in
     connection with the Series B convertible preferred stock, in some
     circumstances. For more information about this limitation, please see
     "--Limitations on Conversion."

(2)  Based on 14,759,087 shares of common stock outstanding as of February 9,
     2001.

         The following table illustrates the varying amounts of shares
of common stock that would be issuable upon conversion of all 348
outstanding shares of Series B convertible preferred stock and


                                      23




all 750 outstanding shares of Series C convertible preferred stock at the
indicated conversion prices (without regard to any limitations on conversion)
and assuming that all additional amounts are paid in cash:





                                Number of Shares of Common Stock       Percentage of Outstanding
       Conversion Price(1)        Issuable Upon Conversion(2)                 Common Stock(3)

                                                                             
             $1.00                    10,980,000                                   42.7
             $2.00                     5,490,000                                   27.1
             $3.00                     3,660,000                                   19.9
             $4.00                     2,745,000                                   15.7
             $5.00                     2,196,000                                   13.0
             $6.00                     1,830,000                                   11.0
             $7.00                     1,568,572                                    9.6




(1)  The calculation assumes that the conversion price of the Series B and
     Series C convertible preferred stock are equal. This could occur at any
     reset date on which the conversion price for the Series C convertible
     preferred stock is adjusted down to the Series B convertible preferred
     stock conversion price. The conversion price of the Series B convertible
     preferred stock would be the prevailing market price.

(2)  The Series B and Series C holder is prohibited from converting the Series
     C or Series B convertible preferred stock, or from exercising the
     warrants issued in connection with the Series B convertible preferred
     stock, in some circumstances. For more information about this limitation,
     please see "--Limitations on Conversion."

(3)  Based on 14,759,087 shares of common stock outstanding as of February 9,
     2001.

Redemption

         If we are unable to convert any Series C convertible preferred stock
on the two-year anniversary of issuance due to restrictions set forth in the
certificate of amendment, we are obligated to redeem the shares that could not
be converted due to the restrictions. The redemption price would be an amount
in cash per share equal to $10,000 plus any additional amounts owed on the
two-year anniversary of the initial issuance date. Additional amounts are
calculated based on an annual premium of 5% on the $10,000 per share value of
the Series C convertible preferred stock.

         The holder of the Series C convertible preferred stock has the right
to require us to redeem all or a portion of its shares upon the announcement
of a major transaction or the happening of a triggering event. Major
transactions include a merger, consolidation, tender offer or sale of
substantially all our assets. A description of triggering events is set forth
below under the caption "--Triggering Events."

         The redemption price upon the happening of these events would be
equal to the greater of $12,000 plus 120% of any additional amounts described
above, and

          o    in the case of a major transaction, the product of the
               conversion rate in effect for the Series C convertible
               preferred stock multiplied by the closing bid price on the date
               of the public announcement of the transaction; or


                                      24




          o    in the case of a triggering event, the product of the
               conversion rate in effect for the Series C convertible
               preferred stock multiplied by the closing bid price immediately
               before the triggering event or on the date of the holder's
               redemption notice.

         We may also be subject to penalty payments upon the happening of
events excluded from the definition of triggering events or resulting from a
default in our redemption obligations. If we are unable to effect a
redemption, the holder is also entitled to void its redemption notice and
receive a reset of its conversion price. The conversion price on the Series C
convertible preferred stock would be reset to the lesser of

          o    the conversion price as in effect on the date the notice is
               delivered to us and

          o    the lowest closing bid price during the period beginning on the
               date on which the notice of redemption is delivered to us and
               ending on the date on which the notice is received.

         In addition, we may be obligated to issue a senior secured note in
exchange for the Series C convertible preferred stock if we default upon our
redemption obligations. The principal amount of the senior secured note would
be the redemption price of the Series C convertible preferred stock exchanged.
Any senior secured note will have a term of one week, will be senior to any
other of the Andrea's indebtedness and will contain other mutually acceptable
credit terms.

Triggering events

          A triggering event will occur upon:

          o the failure of the registration statement covering the resale of
     the conversion shares to be declared effective within 180 days after the
     initial closing date;

          o the lapse of the effectiveness of the registration statement for
     ten consecutive trading days or for an aggregate of fifteen trading days
     per year;

          o the unavailability of the registration statement for the sale of
     all of the shares of common stock into which the Series C convertible
     preferred stock is convertible for a period of ten consecutive trading
     days or an aggregate of fifteen trading days per year;

          o the delisting of our common stock by AMEX for five consecutive
     trading days or for an aggregate of ten trading days per year;

          o the failure of us or our transfer agent to comply with the
     conversion obligations of the Series C convertible preferred stock within
     ten business days after a conversion notice is submitted;

          o our inability to issue conversion shares due to limitations
     imposed by the requirements of AMEX;

          o our failure to make any excluded redemption event daily payment
     (as defined in certificate of amendment); and


                                      25






          o the breach of our representations, warranties, covenants (that are
     not cured in fewer than ten days) or terms of the transaction documents
     which would have a material adverse effect (as defined in the certificate
     of amendment).

Limitations on Conversion

         We are not obligated to issue any shares of common stock upon
conversion of the Series B or Series C convertible preferred stock if the
issuance would be in excess of 19.99% of the outstanding shares of our common
stock. An issuance of 20% or more of our common stock (as determined at the
original date of issuance) would breach our obligations under the rules or
regulations of the AMEX. This limitation will not apply if we obtain
shareholder approval, as required by the AMEX, or obtain a written opinion of
counsel that approval is not required.

         The holder of the Series B and Series C convertible preferred stock
has limitations on its ability to convert the Series B and Series C
convertible preferred stock. The certificate of amendment prohibits the holder
from converting if, after giving effect to the conversion, the holder would
beneficially own in excess of 4.99% or, over any sixty day period, 9.99% of
the outstanding shares of our common stock following such conversion. This
calculation excludes the number of shares of common stock which would be
issuable upon

          o    conversion of the remaining, nonconverted shares of Series B or
               Series C convertible preferred stock beneficially owned by the
               holder and its affiliates,

          o    conversion of any of our Series B convertible preferred stock
               or exercise of the warrants issued in connection with the
               Series B convertible preferred stock beneficially owned by the
               holders and its affiliates and

          o    exercise or conversion of any of the unexercised or unconverted
               portion of any other of our securities (including, without
               limitation, any warrants or convertible preferred stock)
               subject to a limitation on conversion or exercise analogous to
               this limitation beneficially owned by the holder and its
               affiliates.

Conversion at our option

         As more fully set forth in the certificate of amendment, after one
year we may require that the shares of Series C convertible preferred stock be
submitted for conversion. We may only exercise this right if the last reported
sale price (as reported by Bloomberg) for our common stock is greater than
$17.64125, among other conditions.

Registration of shares

         We are obligated by a registration rights agreement to register the
common stock issuable upon conversion of the Series C convertible preferred
stock. We are required by this agreement to initially register with the
Commission the resale of at least the number of shares of common stock equal
to the product of

          (c)  2.0 and


                                      26





          (d)  the number of initial registrable securities (without regard to
               any limitation on conversion).

         In addition, if the holder of the Series C convertible preferred
stock exercises its right to purchase additional shares of Series C
convertible preferred stock, we are also required by the registration rights
agreement to initially register with the Commission the resale of at least the
number of shares of common stock equal to the product of

          (a)  2.0 and

          (b)  the number of additional registrable securities (without regard
               to any limitation on conversion) as of the date immediately
               preceding the date the registration statement is initially
               filed.

         We have agreed to use our best efforts to file the registration
statement with respect to the initial shares of Series C convertible preferred
stock as soon as possible but no later than 60 days after the initial closing
date, the initial filing deadline, and have the registration statement
declared effective by the Commission no later than 120 days after the initial
closing, the initial effectiveness deadline. If the holder elects to purchase
additional shares of Series C convertible preferred stock, we have agreed to
use our best efforts to file the registration statement with respect to the
additional shares of Series C convertible preferred stock as soon as possible
but no later than 30 days after the additional closing date and have the
registration statement declared effective by the Commission no later than 120
days after the additional closing.

         If we are unable to have a registration statement filed or declared
effective in the time required, we shall pay to each holder of registrable
securities an amount in cash per registrable security held equal to the
product of

          (a)  $10,000 multiplied by

          (b)  the sum of

               (1)  .01, if the registration statement is not filed by the
                    filing deadline described above, plus

               (2)  .01, if the registration statement is not declared
                    effective by the effectiveness deadline described above,
                    plus

               (3)  the product of

                    (i)  .0005 multiplied by

                    (ii) the sum of

                         (x)  the number of days after the scheduled filing
                              date that such registration statement is not
                              filed with the Commission, plus


                                      27





                         (y)  the number of days after the scheduled effective
                              date that the registration statement is not
                              declared effective by the Commission, plus

                         (z)  the number of days that sales cannot be made
                              pursuant to the registration statement after
                              the registration statement has been declared
                              effective by the Commission (excluding days
                              during any allowable grace period set forth in
                              the registration rights agreement).

         We have agreed to indemnify the holders of registrable securities
against liabilities under the Securities Act in connection with the
registration of the common stock issuable upon conversion of the Series C
convertible preferred stock. To the extent any indemnification is prohibited
or limited by law, we have agreed to make the maximum contribution with
respect to any amounts for which we would otherwise be liable under the
registration rights agreement to the fullest extent permitted by law. The
holders will similarly indemnify us.

Other terms

         The transaction documents relating to the Series C convertible
preferred stock contain other representations, warranties, agreements and
indemnification obligations of Andrea. The operative agreements

          o    contain a right of first refusal in favor of the investors
               which applies to certain of our private equity financings for
               one year after the initial closing,

          o    restrict our ability to redeem, pay any cash dividends and make
               certain distributions on our common stock,

          o    limit our ability to issue any senior preferred stock, and

          o    prohibit us from entering into certain related party
               transactions except as set forth in the securities purchase
               agreement.

         The shares of Series C convertible preferred stock are also subject
to antidilution provisions which are triggered in the event of certain stock
splits, recapitalizations, or other dilutive transactions, as well as
issuances of common stock at a price below the conversion price in effect, or
the issuance of warrants, options, rights, or convertible securities which
have an exercise price or conversion price less than the conversion price,
other than for certain previously outstanding securities and certain "excluded
securities" (as defined in the certificate of amendment). In the event that we
issue securities in the future which have a conversion price or exercise price
which varies with the market price and the terms of such variable price are
more favorable than the conversion price in the Series C convertible preferred
stock, the purchasers may elect to substitute the more favorable variable
price when making conversions of the Series C convertible preferred stock.

Placement agent compensation

         We and the purchaser each acknowledges that it has not engaged any
placement agent in connection with the sale of the Series C convertible
preferred stock.


                                      28





Use of proceeds

         The net proceeds of the Series C convertible preferred stock received
by us will be used for working capital and general corporate purposes,
including the expansion of our sales and marketing capabilities for the
commercialization of our anti-noise products and the expansion of our research
and development activities. We will not receive any of the proceeds from the
sale of common stock by the selling stockholders.

Interests of certain persons

         None of the investors in the Series C convertible preferred stock
transactions is a director, executive officer or five percent or greater
shareholder of us or is our affiliate.


                          NEW YORK ANTI-TAKEOVER LAW

         We are also subject to provisions of the New York Business
Corporation Law which relate to certain business combinations with an
"interested shareholder" and prohibit any person from making a takeover bid
for a New York corporation unless certain prescribed disclosure requirements
are satisfied.

         Section 912 of the NYBCL provides, with certain exceptions, that a
New York corporation may not engage in a "business combination," such as a
merger, consolidation, recapitalization or disposition of stock, with any
"interested shareholder" for a period of five years from the date that such
persons first became an interested shareholder unless:

          (a)  the transaction resulting in a person becoming an interested
               shareholder, or the business combination, was approved by the
               board of directors of the corporation prior to that person
               becoming an interested shareholder,

          (b)  the business combination is approved by the holders of a
               majority of the outstanding voting stock not beneficially owned
               by such interested shareholder, or

          (c)  the business combination meets certain valuation requirements
               for the stock of the New York corporation.

          An "interested shareholder" is defined as any person that

          (x) is the beneficial owner of 20% or more of the outstanding voting
          stock of a New York corporation or

          (y) is an affiliate or associate of the corporation that at any time
          during the prior five years was the beneficial owner, directly or
          indirectly, of 20% or more of the corporation's then outstanding
          voting stock.

         The provisions of Section 912 of the NYBCL apply if and for so long
as a New York corporation has a class of securities registered under Section
12 of the Exchange Act, at least 25% of its total employees are employed
primarily within New York, or at least 250 employees are so


                                      29





employed and at least 10% of our voting stock is owned beneficially by
residents of the State of New York. We expect to continue to meet one or more
of these tests and, accordingly, to be subject to Section 912 of the NYBCL.
Article 16 of the NYBCL provides that persons seeking to make takeover bids
comply with certain registration and disclosure requirements .


                             PLAN OF DISTRIBUTION

         We are registering the shares of common stock issuable upon
conversion of the Series B convertible preferred stock and the 582,120 shares
issued as consideration for our acquisition of Lamar to permit the resale of
the shares of common stock by the holders from time to time after the date of
this prospectus. We will not receive any of the proceeds from the sale by the
selling stockholders of the shares of common stock. We will bear all fees and
expenses incident to our obligation to register the shares of common stock.

         The selling stockholders may sell all or a portion of the common
stock beneficially owned by it and offered hereby from time to time directly
or through one or more underwriters, broker-dealers or agents. If the common
stock is sold through underwriters or broker-dealers, the selling stockholders
will be responsible for underwriting discounts or commissions or agent's
commissions. The common stock may be sold in one or more transactions at fixed
prices, at prevailing market prices at the time of the sale, at varying prices
determined at the time of sale, or at negotiated prices. These sales may be
effected in transactions, which may involve crosses or block transactions,

          o    on any national securities exchange or quotation service on
               which the securities may be listed or quoted at the time of
               sale,
          o    in the over-the-counter market,
          o    in transactions otherwise than on these exchanges or systems or
               in the over-the-counter market,
          o    through the writing of options, whether such options are listed
               on an options exchange or otherwise, or
          o    through short sales.

         If the selling stockholders effect such transactions by selling
shares of common stock to or through underwriters, broker-dealers or agents,
such underwriters, broker-dealers or agents may receive commissions in the
form of discounts, concessions or commissions from the selling stockholders or
commissions from purchasers of the shares of common stock for whom they may
act as agent or to whom they may sell as principal (which discounts,
concessions or commissions as to particular underwriters, brokers-dealers or
agents may be in excess of those customary in the types of transactions
involved). In connection with sales of the common stock or otherwise, the
selling stockholders may enter into hedging transactions with broker-dealers,
which may in turn engage in short sales of the common stock in the course of
hedging in positions they assume. The selling stockholders may also sell
shares of common stock short and deliver shares of common stock covered by
this prospectus to close out short positions, provided that the short sale is
made after the registration statement is declared effective and a copy of this
prospectus is delivered in connection with the short sale. The selling
stockholders may also loan or pledge shares of common stock to broker-dealers
that in turn may sell such shares.



                                      30





         The selling stockholders may pledge or grant a security interest in
some or all of the shares of common stock owned by them and, if they default
in the performance of their secured obligations, the pledgees or secured
parties may offer and sell the shares of common stock from time to time
pursuant to the prospectus. The selling stockholders also may transfer and
donate the shares of common stock in other circumstances in which case the
transferees, donees, pledgees or other successors in interest will be the
selling beneficial owners for purposes of the prospectus.

         The selling stockholders and any broker-dealer participating in the
distribution of the shares of common stock may be deemed to be "underwriters"
within the meaning of the Securities Act, and any commissions paid, or any
discounts or concessions allowed to any such broker-dealer may be deemed to be
underwriting commissions or discounts under the Securities Act. At the time a
particular offering of the shares of common stock is made, a prospectus
supplement, if required, will be distributed which will set forth the
aggregate amount of shares of common stock being offered and the terms of the
offering, including the name or names of any broker-dealers or agents, any
discounts, commissions and other terms constituting compensation from the
selling stockholders and any discounts, commissions or concessions allowed or
reallowed or paid to broker-dealers.

         Under the securities laws of some states, the shares of common stock
may be sold in such states only through registered or licensed brokers or
dealers. In addition, in some states the shares of common stock may not be
sold unless such shares have been registered or qualified for sale in such
state or an exemption from registration or qualification is available and is
complied with.

         There can be no assurance that any selling stockholder will sell any
or all of the shares of common stock registered pursuant to the shelf
registration statement, of which this prospectus forms a part.

         The selling stockholders and any other person participating in such
distribution will be subject to applicable provisions of the Exchange Act and
the Exchange Act's rules and regulations, including, without limitation,
Regulation M of the Exchange Act, which may limit the timing of purchases and
sales of any of the shares of common stock by the selling stockholders and any
other participating person. Regulation M may also restrict the ability of any
person engaged in the distribution of the shares of common stock to engage in
market-making activities with respect to the shares of common stock. All of
the foregoing may affect the marketability of the shares of common stock and
the ability of any person or entity to engage in market-making activities with
respect to the shares of common stock.

         We will pay all expenses of the registration of the shares of common
stock pursuant to the registration rights agreement estimated to be $50,000 in
total, including, without limitation, Commission filing fees and expenses of
compliance with state securities or "blue sky" laws; provided, however, that
the selling stockholder will pay all underwriting discounts and selling
commissions, if any.

         In connection with sales made pursuant to this prospectus, we will
indemnify the selling stockholders against liabilities, including some
liabilities under the Securities Act, in accordance with the registration
rights agreement or the selling stockholder will be entitled to contribution.
We will be indemnified by the selling stockholders against civil liabilities,
including liabilities under the


                                      31





Securities Act that may arise from any written information furnished to us by
the selling stockholders for use in this prospectus or we will be entitled to
contribution.

         Once sold under the shelf registration statement, of which this
prospectus forms a part, the shares of common stock will be freely tradable in
the hands of persons other than our affiliates.

         HFTP, one of the selling stockholders, has advised us that it
purchased the Series B convertible preferred stock in the ordinary course of
its business and, at the time HFTP purchased the Series B convertible
preferred stock, it was not a party to any agreement or other understanding to
distribute the securities, directly or indirectly.

                                  MANAGEMENT

         The directors and key executive officers of Andrea are as follows:

Name                         Title

John N. Andrea               Co-Chairman and Co-Chief Executive Officer
Douglas J. Andrea            Co-Chairman and Co-Chief Executive Officer
Christopher P. Sauvigne      President and Chief Operating Officer, Director
Richard A.. Maue             Chief Financial Officer, Secretary and Treasurer
Gary A. Jones                Director
Scott Koondel                Director
Jack Lahav                   Director
John R. Larkin               Director
Paul M. Morris               Director

         John N. Andrea, age 42, has been Co-Chairman and Co-Chief Executive
Officer since November 1998 and a Director of Andrea since 1992. He served as
Co-President of Andrea from November 1992 to November 1998, as Executive Vice
President of Andrea from January 1992 to November 1992, and as Sales &
Marketing Director from September 1991 to November 1992. Mr. Andrea is the son
of Frank A.D. Andrea, Jr. and the brother of Douglas J. Andrea.

         Douglas J. Andrea, age 37, has been Co-Chairman and Co-Chief
Executive Officer since November 1998 and a Director of Andrea since 1991. He
served as Co-President of Andrea from November 1992 to November 1998, as Vice
President - Engineering of Andrea from December 1991 to November 1992, and as
Secretary of Andrea from 1989 to January 1993. Mr. Andrea is the son of Frank
A.D. Andrea, Jr. and the brother of John N. Andrea.

         Christopher P. Sauvigne, age 40, has been President and Chief
Operating Officer of Andrea since November 1998, and has been a Director .
From 1982 until joining Andrea in November 1998, Mr. Sauvigne was employed by
Arthur Andersen LLP, where he served in various capacities, the last of which
was as Partner.

         Richard A. Maue, age 30, has been Chief Financial Officer of
Andrea since November 1999, Secretary since June 1997, and Treasurer
since May 1997. From May 1997 to November 1999, he served as Controller.
From 1992 to 1997, Mr. Maue was part of the Audit and Business

                                      32





Advisory division at Arthur Andersen LLP. Mr. Maue has a Bachelor of Science
degree in Accounting from Villanova University. He is a Certified Public
Accountant, a member of the American Institute of Certified Public Accountants
and a member of the New York State Society of Certified Public Accountants

         Gary A. Jones, age 54, has been a Director of Andrea since April
1996. He has served as President of Digital Technologies, Inc. since 1994 and
was Chief Engineer, Allied Signal Ocean Systems from 1987 to 1994. In March
1998, Mr. Jones became Managing Director of Andrea Digital Technologies, Inc.

         Scott Koondel, age 36, has been a Director of Andrea since April
1995. He has been the Eastern Manager, Off-Network Television, Paramount
Pictures, a subsidiary of Viacom International since June 1993, and was the
National Sales Manager for WPIX-TV, a division of Tribune Broadcasting, from
June 1990 to June 1993.

         Jack Lahav, age 52, has been a Director of Andrea since November
1998. He co-founded Lamar Signal Processing Ltd., a subsidiary of Andrea that
was acquired in May 1998. Since August 1996, he has been the President of
Advanced Technology Inc., a manufacturer of robotic routing equipment used in
manufacturing printed circuit boards for advanced semiconductors, and from
1990 to 1996, was a Director of Vocaltec Communications Ltd., an Israeli
Internet telephony software company. In 1980, he founded Remarkable Products,
Inc., a direct mail company, and served as its President until the company was
sold by him in 1993.

         John R. Larkin, age 56, has been a Managing Director of
Shields/Alliance, a division of Alliance Capital Management LP, a global asset
management company, since 1994. He joined Shields Asset Management Inc., the
predecessor of Shields/Alliance, in 1986 and held various positions at that
company, the last of which was Managing Director, until that company was sold
by Xerox Corporation to Alliance Capital Management in 1994. Prior to 1986,
Mr. Larkin was a Principal of Smilen & Safian Inc., a New York-based economic
consulting firm, and a Director and Member of the Investment Committee of the
Sector Investment Fund, a publicly held mutual fund. Mr. Larkin has over 25
years experience in the investment management community in both investment and
marketing capacities.

         Paul M. Morris, age 38, has been a Director of Andrea since 1992. He
has been a Senior Managing Director at Schroder Capital Management since
December 1996. From July 1995 to December 1996, he was a Partner at Weiss,
Peck & Greer, and from 1987 to June 1995 he was employed by Union Bank of
Switzerland, where his last position was Managing Director - Equities.

         The board is served by an Audit Committee, a Compensation Committee
and a Nominating Committee. The Audit Committee is comprised of Messrs. Jones,
Lahav and Morris. The Compensation Committee is comprised of Messrs. Koondel,
Larkin and Morris. The Nominating Committee is comprised of Messrs. Koondel,
Larkin and Morris.





                                      33



Security Ownership of Certain Beneficial Owners and Management

         The following table sets forth certain information as of April 21,
2000 with respect to the stock ownership of

(a) those persons or groups who beneficially own more than 5% of Andrea's
common stock, (b) each director and director-nominee of Andrea, (c) each
executive officer named in the Summary Compensation Table and (d) all
directors and executive officers of Andrea as a group.

         The total number of shares of common stock outstanding on February 9,
2001 was 14,759,087.







                             Amount And Nature Of
                             Beneficial Ownership

                                                 Number              Percent
Name of Beneficial Owner (1)                   of Shares             of Class
- ------------------------                       ---------             --------
Camille Andrea Casling (2)                       753,507                 5.1%
Frank A. D. Andrea, Jr.(2)                       514,800 (3)             3.5%
ANC-I Limited Partnership(2)                     247,000                 1.7%
Douglas J. Andrea (2)                            588,588 (4)             4.0%
John N. Andrea (2)                               427,742 (5)             2.9%
Christopher P. Sauvigne                          176,250 (6)             1.2%
Patrick D. Pilch                                 155,900 (7)             1.0%
Richard A. Maue                                   80,750 (8)             *
Paul M. Morris                                    19,750 (9)             *
Christopher Dorney                                22,500 (10)            *
Scott Koondel                                     28,750 (11)            *
Gary A. Jones                                     28,750 (12)            *
Jack Lahav                                             -                 -
John R. Larkin                                    29,250  (13)           *
Directors and  Executive  Officers as a        2,073,030  (14)          14.0%
group (11 persons)

- -------------
*Less than 1%

(1)   Beneficial ownership is determined in accordance with Rule 13d-3
promulgated under the Securities Exchange Act of 1934. The information
concerning the shareholders is based upon information furnished to Andrea by
such shareholders. Except as otherwise indicated, all of the shares next to
each identified person or group are owned of record and beneficially by such
person or each person within such group and such persons have sole voting and
investment power with respect thereto.

(2)   Camille Andrea Casling is a sister of Frank A.D. Andrea, Jr., Chairman
Emeritus of Andrea. Mary Louise Andrea is the spouse of Frank A.D. Andrea, Jr.
Douglas J. Andrea and John N. Andrea, Co-Chairman and Co-Chief Executive
Officers, are the sons of Frank A.D. Andrea, Jr. and Mary Louise Andrea. ANC-I
Limited Partnership is a Delaware limited partnership, of which the General
Partners are Frank A. D. Andrea, Jr. and Mary Louise Andrea. John N. Andrea
and Douglas J. Andrea are limited partners of this partnership. The address of
each of these individuals and the ANC-I Limited Partnership is c/o Andrea
Electronics Corporation, 45 Melville Park Road, Melville, New York 11747.





                                      34


(3)   Includes
      (a) 148,086 shares owned directly by Frank A.D. Andrea, Jr. and Mary
          Louise Andrea, his spouse,
      (b) 67,714 shares owned by a son of Mr. and Mrs. Andrea, beneficial
          ownership of which is disclaimed by Mr. and Mrs. Andrea,
      (c) 199,000 of the 247,000 shares owned by ANC-I Limited Partnership, and
      (d) 100,000 shares issuable upon the exercise of options which are
          currently exercisable and exercisable within 60 days from the
          date hereof.

(4)   Includes
      (a) 54,088 shares owned directly by Douglas J. Andrea and Mr. Andrea's
          spouse,
      (b) 12,000 of the 247,000 shares owned by ANC-I Limited Partnership, and
      (c) 522,500 shares issuable upon the exercise of options which are
          currently exercisable and exercisable within 60 days from the
          date hereof.
      Does not include 287,500 shares issuable upon exercise of options
that are not currently exercisable or exercisable within 60 days from the date
hereof.

(5)   Includes
      (a) 438 shares owned directly by John N. Andrea and Mr. Andrea's spouse,
      (b) 39,804 shares owned by Mr. Andrea's minor children, and
      (c) 387,500 shares issuable upon the exercise of options which are
          currently exercisable and exercisable within 60 days from the
          date hereof.
      Does not include 287,500 shares issuable upon exercise of options
that are not currently exercisable or exercisable within 60 days from the date
hereof.

(6)   Includes
      (a) 20,000 shares owned directly by Christopher P. Sauvigne and
      (b) 156,250 shares issuable upon the exercise of options which are
          currently exercisable and exercisable within 60 days from the
          date hereof.
      Does not include 343,750 shares issuable upon the exercise of options
that are not currently exercisable or exercisable within 60 days from the date
hereof.

(7)   Includes
      (a) 1,150 shares owned by Patrick D. Pilch's minor children and
      (b) 154,750 shares issuable upon the exercise of options that are
          currently exercisable and exercisable within 60 days from the
          date hereof.
      Does not include 91,250 shares issuable upon exercise of options that
are not currently exercisable or exercisable within 60 days from the date
hereof.

(8)   Includes
      (a) 2,000 shares owned directly by Richard A. Maue and
      (b) 78,750 shares issuable upon the exercise of options which are
          currently exercisable and exercisable within 60 days from the
          date hereof.
      Does not include 113,750 shares issuable upon the exercise of options
that are not currently exercisable or exercisable within 60 days from the date
hereof.

(9)   Includes
      (a) 1,000 shares owned directly by Paul M. Morris, and
      (b) 18,750 shares issuable upon the exercise of options which are
          currently exercisable and exercisable within 60 days from the
          date hereof.
      Does not include 41,250 shares issuable upon exercise of options that
are not currently exercisable or exercisable within 60 days from the date
hereof.

(10)  Includes 22,500 shares issuable upon the exercise of options that are
currently exercisable and exercisable within 60 days from the date hereof.
Does not include 12,500 shares issuable upon exercise of options that are not
currently exercisable or exercisable within 60 days from the date hereof.

(11)  Includes 28,750 shares issuable upon the exercise of options that are
currently exercisable and exercisable within 60 days from the date hereof.
Does not include 41,250 shares issuable upon exercise of options that are not
currently exercisable or exercisable within 60 days from the date hereof.


                                      35


(12)  Includes 28,750 shares issuable upon the exercise of options which are
currently exercisable and exercisable within 60 days from the date hereof.
Does not include 31,250 shares issuable upon exercise of options that are not
currently exercisable or exercisable within 60 days from the date hereof.

(13)  Includes
      (a) 23,000 shares owned directly by John R. Larkin, and
      (b) 6,250 shares issuable upon the exercise of options which are
          currently exercisable and exercisable within 60 days from the
          date hereof.
      Does not include 28,750 shares issuable upon exercise of options that
are not currently exercisable or exercisable within 60 days from the date
hereof.

(14)  Includes the shares directly owned and the shares issuable upon the
exercise of the options, which are currently exercisable and exercisable
within 60 days from the date hereof, discussed in notes (3) through (10)
above.



Executive Compensation

         The following table sets forth information for the last three fiscal
years relating to compensation earned by the Co-Chief Executive Officers and
the other most highly compensated executive officers who received salary and
bonuses over $100,000 during the year ended December 31, 1999.




      Name and Principal Position           Year     Salary ($)   Bonus ($)     Stock Options(#)
      ---------------------------           ----     ----------   ---------     ----------------
                                                                    
    John N. Andrea, Co-Chairman and
     Co-Chief Executive Officer             1999     208,505      150,000(1)    150,000
                                            1998     203,846      150,000       150,000
                                            1997     175,000       75,000       150,000

    Douglas J. Andrea, Co-Chairman and
     Co-Chief Executive Officer             1999     208,505      150,000(1)    150,000
                                            1998     203,846      150,000       150,000
                                            1997     175,000       79,000       150,000

    Christopher P. Sauvigne, President
     and Chief Operating Officer            1999     208,409       75,000(1)    125,000
                                            1998(2)   19,230       16,849(1)    250,000

    Patrick D. Pilch, Executive Vice
     President and Chief Financial Officer  1999(3)  181,515        3,366        75,000
                                            1998     178,365      150,000        75,000
                                            1997     152,503       50,000       100,000

    Richard A. Maue, Vice President,
     Controller, Treasurer and Corporate
     Secretary                              1999(4)   93,815       27,115        25,000


- --------------

(1)      Total bonus received by each of John N. Andrea, Douglas J. Andrea, and
Christopher P. Sauvigne was the minimum bonus payment pursuant to his
employment agreement. See "Employment Agreements and Change in Control
Arrangements."

(2)      Christopher P. Sauvigne joined Andrea on November 20,  1998.

(3)      Patrick D. Pilch served as Executive Vice President and Chief
Financial Officer until November 4, 1999.  From November 4, 1999, has Mr. Pilch
served as Andrea's Senior Vice President of Strategy.


                                      36



(4)      Richard A. Maue joined Andrea in April 1997 and served as Vice
President, Controller, Treasurer and Secretary until November 4, 1999. From
November 4, 1999, Mr. Maue has served as Andrea's Senior Vice President, Chief
Financial Officer, Treasurer and Secretary.

         We granted stock options covering an aggregate of 525,000 shares of
common stock during year 1999 to the named executive officers as indicated in
the above table.

         The following table summarizes for each of the named executive
officers the number of shares covered by options granted during 1999, the
percent of total options granted to employees of Andrea in 1999, the exercise
price of such options, the expiration date, and the potential realizable value
of such options assuming appreciation rates of 5% and 10% per year through the
expiration date of such options.




                     Option/SAR Grants in Last Fiscal Year


         Individual Grants
- ----------------------------------------------------------------------------------

                                                                                              Potential Reallizable
                                                                                               Value at Assumed
                                          Number of     Percentage of                            Annual Rates of
                                          securities    total options                               Stock Price
                                          underlying     granted to    Exercise                 Appreciation for
                              Date of      options     employees in    Price       Expiration       Option Term
     Name                      Grant       granted     fiscal year     ($/share)      Date      5%(1)      10%(1)
                                                                                      
John N. Andrea                 3/22/99    100,000         7%            $6.25      3/22/09      $393,059   $996,089
                               8/17/99     50,000         4%            $5.375     8/17/09      $169,015   $428,318

Douglas J. Andrea              3/22/99    100,000         7%            $6.25      3/22/09      $393,059   $996,089
                               8/17/99     50,000         4%            $5.375     8/17/09      $169,015   $428,318

Christopher P. Sauvigne        3/22/99     75,000         6%            $6.25      3/22/09      $294,794   $747,067
                               8/17/99     50,000         4%           $5.375      8/17/09      $169,015   $428,318

Patrick D. Pilch               3/22/99     50,000         4%            $6.25      3/22/09      $196,530   $498,045
                               8/17/99     25,000         2%            $5.375     8/17/09       $84,508   $214,159

Richard A. Maue                8/17/99     25,000         2%            $5.375     8/17/09       $84,508   $214,159



- -------------
(1)  The dollar amounts represent certain assumed rates of appreciation. Actual
gains, if any, on stock option exercises and common stock holdings are
dependent upon future performance of Andrea's common stock and overall stock
market conditions. There can be no assurance that the amounts reflected in
this table will be realized.


                                      37



         The following table summarizes for each of the named executive
officers the number of shares acquired and value realized upon exercise of
options during fiscal 1999 and the aggregate dollar value of in-the-money,
unexercised options at December 31, 1999. None of the named executive officers
exercised or held any SARs during the year.



              Aggregated Option Exercises in Last Fiscal Year and
                         Fiscal Year End Option Values



                                                        Number of
                                                        Securities
                                                        Underlying                      Value of Unexercisable
                                                        Unexercised Options at
                                                        Fiscal Year End
                                                                                        In-the-Money Options at
                         Shares                                                         Fiscal Year End-
                         Acquired                        Exercisable/                   Exercisable/
Name                     on Exercise    Value Realized   Unexercisable                  Unexercisable(1)
====
                                                                            

John N. Andrea              -           $   -               212,500/337,500 (2)(7)      $342,100/$432,700

Douglas J. Andrea           -           $   -               362,500/337,500 (3)(7)      $1,393,150/$432,700

Christopher P. Sauvigne     -           $   -               62,500/312,500 (4)(7)       $ -/$223,375

Patrick D. Pilch            -           $   -               68,750/181,250 (5)(7)       $115,600/$245,250

Richard A. Maue             -           $   -               27,500/95,000 (6)(7)        $28,900/$115,600



- --------------

(1)  Values were based on a closing trade price for Andrea's common stock on
December 31, 1999 of $7.687 per share.

(2)  John N. Andrea was granted options to purchase: 100,000 shares at a price
of $6.00 per share on September 12, 1994; 150,000 shares at a price of $5.375
per share on April 1, 1997; 50,000 shares at a price of $14.625 per share on
March 3, 1998; 100,000 shares at a price of $14.125 per share on June 8, 1998;
100,000 shares at a price of $6.25 per share on March 22, 1999; and 50,000
shares at a price of $5.375 per share on August 17, 1999.

(3)  Douglas J. Andrea was granted options to purchase: 300,000 shares at $.675
per share on June 26, 1992; 100,000 shares at a price of $6.00 per share on
September 12, 1994; 150,000 shares at a price of $5.375 per share on April 1,
1997; 50,000 shares at a price of $14.625 per share on March 3, 1998; 100,000
shares at a price of $14.125 per share on June 8, 1998; 100,000 shares at a
price of $6.25 per share on March 22, 1999; and 50,000 shares at a price of
$5.375 per share on August 17, 1999.

(4)  Christopher P. Sauvigne was granted options to purchase: 250,000 shares at
$8.875 per share on November 20, 1998; 75,000 shares at $6.25 per share on
March 22, 1999; and 50,000 shares at a price of $5.375 per share on August 17,
1999.

(5)  Patrick D. Pilch was granted options to purchase: 100,000 shares at a
price of $5.375 per share on April 1, 1997; 25,000 shares at a price of
$14.625 per share on March 3, 1998; 50,000 shares at a price of $14.125 per
share on June 8, 1998; 50,000 shares at a price of $6.25 per share on March22,
1999; and 25,000 shares at a price of $5.375 per share on August 17, 1999.

(6)  Richard A. Maue was granted options to purchase: 50,000 shares at a price
of $5.375 per share on April 1, 1997; 10,000 shares at a price of $14.625 per
share on March 3, 1998; 25,000 shares at a price of $14.125 per share on June
8, 1998; 25,000 shares at a price of $8.875 on November 20, 1998; and 25,000
shares at a price of $5.375 per share on August 17, 1999.

(7)  Of the shares covered by each option granted, none can be purchased during
the first year following the grant; 25% can be purchased after the first
anniversary of the grant; an additional 25% can be purchased after the second
anniversary of the grant; and the remaining 50% can be purchased after the
third anniversary.


                                      38

Employment Agreements and Change in Control Arrangements

         Andrea entered into three-year employment agreements that commenced
on March 26, 2000 with John N. Andrea and Douglas J. Andrea, each as
Co-Chairman and Co-Chief Executive Officers of Andrea. Under these agreements,
the annual base salaries of John N. Andrea and Douglas J. Andrea are $200,000.
Each agreement provides for additional short-term incentive compensation in
the form of annual cash bonuses based on the achievement of performance goals
and which shall not be less than $150,000 per annum, and long-term incentive
compensation in the form of cash or equity-based awards.

         Andrea entered into a two-year employment agreement that commenced on
March 26, 2000 with Richard A. Maue, as Senior Vice President and Chief
Financial Officer of Andrea. The agreement provides an annual base salary of
not less than $150,000 per annum, plus additional short-term incentive
compensation in the form of annual cash bonuses, based on the achievement of
performance goals and which shall not be less than $25,000 per annum, and
long-term incentive compensation in the form of cash or equity-based awards.

         Andrea entered into an employment agreement with Christopher P.
Sauvigne, as President and Chief Operating Officer of Andrea, that commenced
on November 20, 1998 and expires on December 31, 2001. The agreement provides
an annual base salary of not less than the greater of

         (a)  $200,000 per annum and
         (b)  the higher of the base salaries of the co-chief executive
              officers of Andrea, plus additional short-term incentive
              compensation in the form of annual cash bonuses, based on the
              achievement of performance goals and which shall not be less
              than $150,000 per annum, and long-term incentive compensation in
              the form of cash or equity-based awards.

         Under each of the aforementioned agreements, on the occurrence of a
change in control (as defined), Andrea shall pay the executive, or in the
event of his subsequent death, his beneficiary or beneficiaries, or his
estate, as the case may be, a sum equal to the greater of

         (a)  the payments due for the remaining term of the agreement or
         (b)  the product of
              (1)five (in the case of John N. Andrea, Douglas J. Andrea and
              Christopher P. Sauvigne) and three (in the case of Richard A.
              Maue) multiplied by
              (2) the executive's average annual total compensation for the
              five (in the case of John N. Andrea, Douglas J. Andrea and
              Christopher P. Sauvigne) and three (in the case of Richard A.
              Maue) preceding taxable years, or if his employment by Andrea is
              then less than three years, the executive's average annual
              compensation during his employment by Andrea.

         In addition, under each of the aforementioned employment
agreements, on the occurrence of a change in control, all restrictions
on any restricted stock then held by the executive will lapse immediately,
incentive stock options and stock appreciation rights then held
will become immediately exercisable, and any performance
shares or units then held will vest immediately in

                                      39





full, and the executive will be entitled to receive benefits
due him under or contributed by Andrea on his behalf pursuant to any
retirement, incentive, profit sharing, bonus, performance, disability or other
employee benefit plan maintained by Andrea on his behalf to the extent such
benefits are not otherwise paid to him under a separate provision of the
agreement. If, during the term of the agreement, Andrea terminates the
executive's employment other than for cause (as defined in the agreement), or
the executive resigns for good reason (as defined in the agreement), Andrea
shall pay to him the product of

         (a)  a sum equal to
             (1)  the amount of the remaining salary payments that he would
                  have earned if he continued his employment with Andrea
                  during the remaining unexpired term of his employment
                  agreement at his base salary at the date of termination,
             (2)  the highest amount of bonus and any other compensation paid
                  to the executive, in any year, during the term of his
                  employment agreement times the remaining number of years of
                  the agreement and any fraction thereof and
             (3)  an amount equal to the highest amount of annual
                  contributions that were made on the executive's behalf, in
                  any year, to any employee benefit plans of Andrea during the
                  term of the agreement, multiplied by
         (b) the remaining number of years of the agreement and any fraction
             thereof.


                                 LEGAL MATTERS

         Legal matters with respect to our common stock being offered hereby
have been passed upon for us by our counsel, Brown & Wood LLP, New York, New
York.


                                    EXPERTS

         The consolidated financial statements and schedules of Andrea
incorporated in this prospectus and registration statement by reference to our
annual report on Form 10-K have been audited by Arthur Andersen LLP,
independent public accountants, as indicated in their reports with respect
thereto, and are incorporated by reference in reliance upon the authority of
said firm as experts in accounting and auditing.

         The independent appraisal referred to in Note 2 to the Company's
financial statements included in the Company's 1999 Annual Report on Form 10-K
which is incorporated herein by reference was performed by Empire Valuation
Consultants, Inc., and is referred to herein in reliance upon the authority of
said firm as experts in performing such appraisals.


                      WHERE YOU CAN FIND MORE INFORMATION

         We file annual, quarterly and periodic reports, proxy
statements and other information with the Securities and Exchange
Commission using the Commission's EDGAR system. You may inspect
these documents and copy information from them at the Commission's
public reference facilities at 450 Fifth Street, N.W., Washington,
D.C. 20549 or at the regional offices of the Commission at Citicorp
Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661 and





                                      40

Seven World Trade Center, Suite 1300, New York, New York 10048. Copies of such
material can be obtained at prescribed rates from the Public Reference Section
of the Commission at 450 Fifth Street, N.W., Washington, D.C. 20549. The
Commission maintains a Web site that contains reports, proxy and information
statements and other information regarding registrants that file
electronically with the Commission. The address of such site is
http://www.sec.gov.

         We have filed a registration statement with the Commission relating
to the offering of the common stock. The registration statement contains
information which is not included in this prospectus. You may inspect or copy
the registration statement at the Commission's public reference facilities or
its web site.

         We furnish our stockholders with annual reports containing audited
financial statements and with such other periodic reports as we from time to
time deem appropriate or as may be required by law.


                            Incorporated Documents

         We have filed the following documents with the Commission. We are
incorporating these documents in this prospectus, and they are a part of this
prospectus.

         (1)    Our annual report on Form 10-K for the fiscal year ended
                December 31, 1999;

         (2)    Our quarterly reports on Form 10-Q for the quarters ended
                March 31, 2000, June 30,  2000 and September 30, 2000;

         (3)    Our current report on Form 8-K dated October 12, 2000; and

         (4)    The description of our common stock, par value $.50 per share,
                contained in

                (a) our registration statement filed under the Exchange Act of
                    1934, as amended, No. 1-4324, as declared effective on
                    February 28, 1967,

                (b) Article Third of our Restated Certificate of Incorporation
                    filed as Exhibit 3.1 to our current report on Form 8-K
                    dated November 30, 1998 as amended by our certificate of
                    Amendment dated June 10, 1999 filed as Exhibit 3.1 to our
                    current report on Form 8-K dated June 18, 1999 and as
                    subsequently amended by our Certificate of Amendment dated
                    October 5, 2000 filed as Exhibit 3.1 to our Current Report
                    on Form 8-K dated October 12, 2000 and

                (c) any subsequent amendment(s) or report(s) filed for the
                    purpose of updating such description.

         We are also incorporating by reference in this prospectus all
documents which we file pursuant to Section 13(a), 13(c), 14 or 15 of the
Securities Exchange Act of 1934, as amended after the date of this prospectus.
Such documents are incorporated by reference in this prospectus and are a part
of this prospectus from the date we file the documents with the Commission.



                                      41



         If we file with the Commission any document that contains information
that is different from the information contained in this prospectus, you may
rely only on the most recent information which we have filed with the
Commission.

         We will provide a copy of the documents referred to above without
charge if you request the information from us. Requests for such copies should
be directed to us at our principal executive offices at Andrea Electronics
Corporation, 45 Melville Park Road, Melville, New York, 11747, attention:
Secretary or (631) 719-1800.

         You should only rely on the information incorporated by reference or
provided in this prospectus or any supplement. We have not authorized any
person to provide you with any different information. If anyone provides you
with different or inconsistent information you should not rely on it. The
common stock is not being offered in any state where the offer is not
permitted. You should not assume that the information in this prospectus or
any supplement is accurate as of any date other than the date on the front of
this prospectus.

         The information in this prospectus may not contain all of the
information that may be important to you. You should read the entire
prospectus, as well as the documents incorporated by reference in the
prospectus, before making an investment decision.





                                      42



         No dealer, salesman, or any other person has been authorized to give
any information or to make any representations other than those contained in
this prospectus in connection with the offering herein contained and, if given
or made, such information or representations must not be relied upon as having
been authorized by us or the selling stockholders. This prospectus does not
constitute an offer to sell, or a solicitation of an offer to buy, the
securities offered hereby in any jurisdiction to any person to whom it is
unlawful to make an offer or solicitation.

         Neither the delivery of this prospectus nor any sale made hereunder
shall, under any circumstances, create an implication that there has been no
change in our affairs since the date hereof or that any information contained
herein is correct as to any of the time subsequent to its date. However, we
have undertaken to amend the registration statement of which this prospectus
is a part to reflect any facts or events arising after the effective date
thereof which individually or in the aggregate represent a fundamental change
in the information set forth in the registration statement. It is anticipated,
however, that most updated information will be incorporated herein by
reference to our reports filed under the securities exchange act of 1934. See
"documents incorporated by reference."

         All dealers effecting transactions in the common stock offered
hereby, whether or not participating in this distribution, may be required to
deliver a prospectus. This is in addition to the obligation of dealers to
deliver a prospectus when acting as underwriters and with respect to their
unsold allotments or subscriptions.

                               2,791,891 Shares



                        Andrea Electronics Corporation



                                 Common Stock


                             ---------------------
                                  PROSPECTUS
                             ---------------------


                               February 21, 2001