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CSR adds apt-X audio quality to BlueCore

Posted: 06 Feb 2007 ?? ?Print Version ?Bookmark and Share

Keywords:DSP? BlueCore? apt-X? CSR? APT?

CSR has announced the addition of a new compression technology to its DSP-based BlueCore5-Multimedia platform, which promises customers improved wireless audio quality. By porting APT Ltd's enhanced apt-X algorithm onto the BlueCore Multimedia platform, CSR enables more ways for wireless audio designers to create devices that offer improved levels of audio quality, with reduced processing latency compared to the Bluetooth standard SBC encoding, without compromising on power consumption.

Unlike other Bluetooth single-chip devices available today, BlueCore5-Multimedia is based on a Kalimba DSP coprocessor operating at 64MIPS to support the integration of third-party software enhancements. Customers using this platform have access to a new set of features, thanks to the eXtension Partner Programme. The enhancements include dynamic noise and echo cancellation, stereo music enhancement and text-to-speech capability.

Anthony Murray, senior VP of CSR's wireless audio strategic business unit commented, "Our roadmap has been driven by overwhelming market demand for wireless audio products that can offer the same quality as their premium, wired counterparts. BlueCore5-Multimedia caters to all aspects of wireless audio, from the RF and low-power hardware design to support for software extensions to further improve audio performance."

apt-X technology is an established standard for audio transport in the fields of professional broadcast and film post-production. Now, as regular listeners become ever more sophisticated, demanding higher quality on their mobile media players, additional channels for stereo headsets and the ability to interact with video, the consumer market is also set to benefit from apt-X. The technology's core strengths of low delay, high error resilience and high audio quality make enhanced apt-X the perfect enabler for wireless headsets, speakers and other applications.

Powerful platform
Stephen Wray, licensing business manager for APT, noted, "Partnering APT's expertise in audio compression and CSR's experience in the Bluetooth semiconductor market has produced a powerful platform delivering enhanced apt-X audio quality to the mass consumer market."

BlueCore5-Multimedia has been designed to offer superior sound quality for headset applications with a best-in-class SNR of -95dB. The device also claims to lead the industry in power consumption and radio design. The radio transmits at 6.5dBm and receives at -90dBm, eliminating interference when listening to music or taking a call. When used in stereo headset applications, BlueCore5-Multimedia enables battery life of more than 24hrs of music playback.

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