P. Such forward-looking statements involve known and unknown risks,
uncertainties, and other factors which may cause the actual results,
performance or achievements of the Company to be materially different from any
future results, performance, or achievements expressed or implied by such
forward-looking statements.

percon spills

For more information about Dolby Laboratories or Dolby
technologies, please visit http://www.

Shareholders and other individuals wishing to receive, free of charge,
copies of the reports filed with the U. Investors are encouraged to
consider the risks detailed in those filings

Zarlink, ZL, and the Zarlink Semiconductor logo are trademarks of Zarlink
Semiconductor Inc.

overhear flightradio

Certain statements in this press release, including statements regarding
the performance and capabilities of Dolby Pro Logic II, the potential benefits
that customers, including broadcasters, broadcast equipment manufacturers and
consumers, may derive from these products and technologies, and the
anticipated market acceptance of these technologies, are "forward-looking
statements" that are subject to risks and uncertainties .

zarlink.

spills fcc

"This new demodulator extends our best-in-
class performance levels and adds valuable on-chip features to significantly
reduce time and cost-to-market. The board will be fully functional with a simple
software upgrade.

Certain statements in this press release constitute forward-looking
statements within the meaning of the Private Securities Litigation Reform Act
of 1995.

robberies parnass

"We're thrilled to bring this format to iBiquity HD Radio, and therefore
to offer the millions of consumers with Dolby Pro Logic II receivers the
opportunity to experience high-quality surround sound through HD Radio," said
Tom Daily, Director of Marketing, Pro Audio, Dolby Laboratories . Based in San Francisco with European headquarters in England, the
company has entertainment industry liaison offices in New York and Los
Angeles, and licensing liaison offices in London, Shanghai, Beijing , Hong
Kong, and Tokyo.ibiquity. It features a "sleep"
pin that reduces the chip's power requirement 1,000-fold when a device is not
in use, assisting manufacturers in meeting power reduction directives and the
strict power requirements of handheld and PC-TV equipment.

scanner listeners

For
more information please visit: http://www. For more on the company's
digital television technology, visit http://dtv.

listeners scanning

The company's investors include 15 of the nation's
top radio broadcasters, including ABC, Clear Channel and Viacom; leading
financial institutions, such as Grotech Capital Group, J.S.

ambulances neighbor

For nearly four decades, Dolby has been at the forefront of
defining high-quality audio and surround sound in cinema , broadcast, home
audio systems, cars, DVDs, headphones, games, televisions, and personal
computers .

Hostage dramas, bank robberies, car crashes, chemical spills, neighbor and domestic disputes, tornado sightings are all fair game.

flightradio frequencies

Such risks, uncertainties and assumptions include,
among others, the following: increasing price and product/service competition
by foreign and domestic competitors, including new entrants; rapid
technological developments and changes; the ability to ensure continuity of
supply from outside fabrication services; changes in environmental and other
domestic and foreign governmental regulations; protection and validity of
patent and other intellectual property rights; exposure to currency exchange
rate fluctuations; the ability of the Company to attract and retain key
employees; demographic changes and other factors referenced in the Company's
Annual Report on Form 10-K for the fiscal year ended March 26, 2004 and Form
10-Q for the quarter ended December 24, 2004.

parnass callsign

Dolby, Pro Logic, and the double-D symbol are registered trademarks of
Dolby Laboratories.
Zarlink is the number one provider of terrestrial DTV demodulators,
shipping in excess of four million MT352 chips in 2004 alone. This feature allows compliant reception of 6, 7 or 8 MHz
(megahertz) channels using a single filter, thereby reducing the overall bill
of materials and saving board space.

callsign wtb

com.

Superior blind scan capability

Zarlink was first-to -market with demodulators delivering a very high-
speed "blind scan and auto re-acquisition" function . Since
terrestrial operators routinely change services and relocate channels to new
frequencies , consumers value this high-speed scanning function.

About Zarlink Semiconductor

For over 30 years, Zarlink Semiconductor has delivered semiconductor
solutions that drive the capabilities of voice, enterprise, broadband and
wireless communications.

scanner FAQ, written by Bob Parnass, AJ9S:
Every day and night, scanner hobbyists are entertained by what they overhear on their radios .

signals overhear

HD Radio is a trademark of iBiquity Digital Corp.

percon ambulances

These risks and
uncertainties, which could cause the forward-looking statements to differ
materially from anticipated results, include, without limitation , risks
associated with building customer and consumer acceptance of and demand for
equipment incorporating Dolby Pro Logic technology, including competition
risks, risks associated with developments in or rapid changes in technical
requirements for audio technologies, risks associated with Dolby's
relationship with broadcaster and makers of broadcast equipment, and other
risks detailed in Dolby's Securities and Exchange Commission filings and
reports, including, its registration statement on Form S-1, as amended, filed
in connection with its initial public offering. The ZL10353 device is offered
in a compact 64-pin LQFP (low-profile quad flat pack) measuring just 10x10 mm.
Zarlink supports the product with a comprehensive evaluation system that
includes TNIM reference designs, evaluation software and PC interface.com or contact investor relations.

navigational overhear

dolby.

Integrated modules maximize space and functionality

The integrated digital IF filter on the ZL10353 demodulator eliminates
the need for switched bandwidth SAW (surface acoustic wave) filters in the
tuner design. Consumers may detect problems with the terrestrial signal upon
television set-up or during use, enabling clearer , more satisfying TV viewing
without requiring expensive service calls from the carrier. Most receivers rely on
complex, software-based channel-scanning algorithms that require the consumer
to enter the key parameters of the signals for which they are looking.
The ZL10353 offers extended operational temperature range of -10 to +80
degrees Celsius, delivering higher reliability in more rugged consumer
environments.

wtb signals

About iBiquity Digital
iBiquity Digital is the sole developer and licenser of HD Radio(TM)
technology in the U.
"As the first company to achieve full NorDig Unified compliance, we
ensure our customers have the highest possible performance standard in their
DTV equipment designs," said Bob Ferreira, DTV Front-End product line
director, Zarlink Semiconductor .

Product availability

Zarlink's new demodulator is available now.

hear frequencies

Broadcast Electronics (NAB Booth N1802) will be demonstrating Dolby Pro
Logic II's application on a full, end -to-end HD Radio broadcast chain from
Broadcast Electronics' AudioVAULT(R) radio automation system to its FXi 60 HD
Radio + FM exciter at the NAB2005 conference, held April 16-21 in Las Vegas.2 standard .com/ .

Police cars, fire engines, ambulances, airplanes, armored cars, trains, taxis, and buses are all equipped with radios and you can listen to them.

You can monitor the local sheriff and fire departments to hear about events 'as they happen,' before the news reporters hear about them.

overhear frequencies

SAN FRANCISCO, Dolby Laboratories and iBiquity
Digital Corporation have approved Dolby(R) Pro Logic(R) II as an audio format
for the iBiquity HD Radio(TM) system. Dolby Pro Logic II technology provides
a high -quality, full surround sound experience on any two-channel service,
such as stereo radio and television broadcasts.com.
The product also contains an RF signal strength indicator, allowing
download and reading of the television signal strength directly at the
receiver box.
Zarlink works with module and set-top box manufacturers to offer system
designers a wide choice of front-end applications .

radio.

spills stakeout

Content encoded in Dolby Pro Logic II
is stored, edited, and broadcast as traditional two -channel signals, and is
then decoded into five-channel surround sound by the listener's Dolby Pro
Logic II receiver., which is transforming today's AM and FM radio stations
to digital, enabling radically upgraded sound, crystal-clear reception and new
wireless data services."
The device can be dropped directly into any PCB (printed circuit board)
designed with the MT352.

recorder switched

Dolby Pro
Logic II is also used extensively in the television broadcast and cable
industry. The Company's success is built on its technology
strengths including voice and data networks, consumer and ultra low-power
communications, and high-performance analog.

signals trunking

Tens of millions of Dolby Pro Logic II decoders, including those designed
for home receivers and car audio systems, have been sold to date. The
ZL10353 demodulator uses a hardware-based, very low software-overhead state
machine that automatically and quickly scans the entire broadcast band. For more information, visit
http: //www.zarlink.

From the rec.

In a single afternoon, you can hear a high speed police chase, Drug Enforcement agents on a sting operation, and undercover FBI agents as they stakeout a suspect.

signals percon

The demonstration will feature a Dolby DP563 Dolby Surround and Pro Logic II
Encoder and a Dolby DP564 Multichannel Audio Decoder.

About Dolby Laboratories
Dolby Laboratories (NYSE: DLB) develops and delivers products and
technologies that make the entertainment experience more realistic and
immersive .S.
The ZL10353 chip delivers maximum flexibility in a wide range of digital
entertainment equipment, including STBs (set-top boxes), TNIMs (terrestrial
network interface modules), hand-held devices, PVRs (personal video
recorders), and PC-TV computer cards/modules that receive DVB-T terrestrial
signals.

uniden navigational

Dolby disclaims any
obligation to update information contained in these forward-looking statements
whether as a result of new information, future events or otherwise. Featuring an
on -chip RF signal strength indicator and digital IF (intermediate frequency)
filter, the ZL(TM)10353 device upgrades the performance of Zarlink's market-
leading MT352 demodulator, allowing customers to further reduce costs and save
board space in their digital television equipment designs.

Power savings

The ZL10353 device delivers the industry's lowest power consumption at
less than 300 mW (milliwatts) in a typical application.

ambulances listeners

Dolby Pro Logic II Approved for iBiquity HD Radio System

HD Radio, iBiquity's end-to-end digital broadcasting technology, allows
digital radio signals to be transmitted simultaneously with analog signals
over existing AM/FM radio frequencies . iBiquity, named
one of Deloitte's Fast 500 Companies, is a privately held company with
operations in Columbia, MD , Detroit, MI, Belmont, CA and Warren, NJ.
AudioVAULT is a registered trademark of Broadcast Electronics.

Zarlink delivers world's first demodulator to meet full NorDig Unified standards for terrestrial DTV market

zarlink. Securities and Exchange Commission
and Regulatory Authorities , should visit the Company's web site at
http://www.

switched spills

This approval enables content encoded in Dolby Pro Logic II to be
delivered over iBiquity's HD Radio system, providing a rich surround sound
listening experience for consumers with Dolby Pro Logic II decoders, such as
those in many car audio systems and A/V receivers. - New chip integrates RF signal strength indicator and digital IF filter

OTTAWA, Canada, June 22 - Zarlink Semiconductor
(NYSE/TSX:ZL) today launched the industry's first terrestrial DTV demodulator
to fully comply with the stringent NorDig Unified 1.0.com .

listeners signals

Morgan Partners,
New Venture Partners, Pequot Capital and J+W Seligman; and strategic partners
Ford Motor Company, Harris, Texas Instruments and Visteon. The ZL10353 is a
"drop-in" replacement for all current MT352 applications and continues to
offer the industry's lowest operational and standby power, and the fastest
DVB-T (digital video broadcast - terrestrial) "blind-scan and auto re-
acquisition " capability. Device
drivers are also available.