Press Release



QSound Labs’ Stereo Expansion Technology Now Available on CSR’s BlueCore5-Multimedia



Cambridge, UK and Calgary, Alberta – March 26, 2007 - CSR (LSE: CSR) has further boosted its multimedia Bluetooth technology with the addition of QSound Labs’ (NASDAQ: QSND) QXpander technology. QSound offers a powerful suite of audio enhancements for digital playback that provides a richer, more natural and immersive enhanced audio for CSR’s BlueCore3 and BlueCore5-Multimedia systems. Music transmitted over Bluetooth via CSR’s BlueCore technology now benefits from spatial stereo expansion through QSound’s QXpander audio algorithms. QSound will be demonstrating its technology on CSR’s BlueCore Multimedia systems this week at exhibition Stand 463-A at the CTIA Wireless 2007, in Orlando, Florida.


QXpander technology uses purpose-specific algorithms for maximum spatial impact on headphones and speakers. The three-dimensional spatial processing adds new depth to music playback by expanding the soundstage beyond the physical limitations of speaker locations; this expands the acoustic image outside of the user’s head when using headphones. The sophisticated enhancement algorithms are particularly effective on highly compressed audio content such as MP3 and SBC.


CSR’s BlueCore-Multimedia platform has a high-performance integrated DSP that enables it to be the only Bluetooth platform available that can support multiple third party enhancement software. BlueCore Multimedia also leads the industry for power consumption and radio design as well as offering superior sound quality with a best-in-class signal to noise ratio. CSR adds additional functionality and audio enhancement capabilities to BlueCore5-Multimedia through its eXtension Partner Programme - QSound is the latest addition to this programme.


“This is exactly the type of innovation that the CSR eXtension Programme was designed to bring to CSR’s customers,” said Anthony Murray, Senior Vice President, Wireless Audio Business Unit, CSR. “QSound’s rich package of audio enhancements for CSR’s BlueCore platforms greatly improves the user experience providing a more natural dimension to sound.”


“CSR’s Bluetooth technology has been leading the way in enabling superior mobility for mass market devices,” said David Gallagher, President and Chief Executive Officer of QSound Labs Inc. “QSound’s participation in CSR’s eXtension programme enables CSR’s customers to reach new dimensions in spatial audio quality.” 


QSound’s audio software is well known as one of the wireless industry’s highest quality, most compact and efficient solutions for enriching the users’ experience.  QSound technology has been integrated into over 150 million devices ranging from mobile phones, consumer electronics, PCs, game consoles and more.



About CSR
CSR is the leading global provider of personal wireless technology and its product portfolio covers Bluetooth, GPS, FM receivers and WiFi (IEEE802.11). CSR offers developed hardware/software solutions, based around its silicon platforms, that incorporate, fully integrated radio, baseband and microcontroller elements.


CSR’s customers include industry leaders such as Apple, Dell, LG, Motorola, NEC, Nokia, Panasonic, RIM, Samsung, Sharp, Sony, TomTom and Toshiba.


CSR has its headquarters and offices in Cambridge, UK, and offices in Japan, Korea, Taiwan, China, India, France, Denmark, Sweden and both Dallas and Detroit in the USA.


More information can be found at



About QSound Labs, Inc.
Since its inception in 1988, QSound Labs, Inc. has established itself as one of the world's leading audio technology companies. The company has developed proprietary audio solutions that include virtual surround sound, positional audio and stereo enhancement for the mobile devices, consumer electronics, PC/multimedia, and Internet markets. QSound Labs’ cutting-edge audio technologies create rich 3D audio environments allowing consumers to enjoy stereo surround sound from two, four and up to 7.1 speaker systems.


The company’s customer and partner roster includes Access, Aplix, Aricent, ARM, ATI, BenQ, Broadcom, CSR, HiSilicon, Infineon, Lenovo, Marvell (Intel), MITAC, MontaVista, PacketVideo, Philips, Qualcomm, RealNetworks, Sanyo, Sony Vaio, STMicroelectronics, Tensilica, Texas Instruments, Thomson, Toshiba, Trolltech, UTStarcom, Zoran and ZTE among others.


More information can be found at




For more information please contact:

Media Relations                          Investor Relations                           

Alan Woolhouse                             David Marsden/Richard Parker
CSR                                                EML                               
Tel: +44 1223 692 689                  Tel: +44 208 408 8000                                                                                      

Jacques LaPointe                           Paula Murray                                      
QSound Labs, Inc.                         QSound Labs, Inc.                                    
+1-403-291-2492                          +1-954-796-8798                            





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