Dolby Laboratories (DLB) 10-Q 2009 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Dolby Laboratories, Inc. (the “Company”) on Form 10-Q for the fiscal quarter ended March 27, 2009, as filed with the Securities and Exchange Commission (the “Report”), Kevin J. Yeaman, President and Chief Executive Officer of the Company, and G. Michael Novelly, Interim Chief Financial Officer of the Company, respectively, do each hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

• The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

• The information in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: April 30, 2009

/s/ Kevin J. Yeaman

Kevin J. Yeaman

President and Chief Executive Officer

/s/ G. Michael Novelly

G. Michael Novelly

Interim Chief Financial Officer