Product category:
Communications ICs (Wireless)
News Release from: Cambridge Silicon Radio | Subject: BlueCore3-MM
Edited by the Electronicstalk Editorial
Team on 14 March 2006
Bluetooth headphones add DSP-based voice
filtering
CSR has added its Clear Voice Capture (CVC) system to Wi-Gear 's iMuffs stereo headphones.
CSR has added its Clear Voice Capture (CVC) system to Wi-Gear 's iMuffs stereo headphones The headphones, for use with both mobile phones and music players, employ CSR's BlueCore3-Multimedia (BlueCore3-MM) silicon for enhanced Bluetooth connectivity and support for native music compression codecs
This article was originally published on Electronicstalk on 21 Jul 2005 at 8.00am (UK)
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The headphones, which are available now, use CVC to ensure the highest quality, clear voice communications despite the proximity of the integrated microphone to the speaker within the earpiece.
The iMuffs are the first Bluetooth stereo headphones to support CSR's CVC technology which cancels echo and suppresses noise in voice communications by separating out the voice signals of interest using proprietary signal extraction techniques.
This approach employs an active and self-adaptive system that uses the manner in which human speech is heard and processed.
Further reading
Motorola adopts multimedia Bluetooth chip
CSR is to provide BlueCore3-Multimedia (BlueCore3-MM) silicon to Motorola for use in the company's RCKT-100 wireless audio car adapter and hands-free unit.
Complete Bluetooth bundle aids PC applications
CSR (Cambridge Silicon Radio) and WIDCOMM have announced the availability of a combined Bluetooth single-chip and software solution.
The headphones are also designed with iPod users in mind, offering complementary styling and excellent audio performance.
To enhance compatibility with the iPod, Wi-Gear offers a Bluetooth dock adapter for the new Nano and Video formats or a dongle, allowing them to stream music to Bluetooth-enabled speaker systems and stereo headphones within a 10m range.
The iMuffs use BlueCore3-Multimedia (BlueCore3-MM) with an enhanced digital signal processor (DSP) to simultaneously connect to both a mobile handset and iPod via the supplied Bluetooth adapter.
BlueCore3-MM supports the advanced audio distribution profile (A2DP) and audio-visual remote control profile (AVRCP) which allow the wearer to control playback of their music via the ergonomic headset controls.
The wearer will never need to worry about missing a call while listening to music.
The headset will automatically stop the music playback to alert the user to an incoming call.
The user then decides to accept or reject the call with a touch of a button on the headset and once the call is finished, music playback will automatically resume.
Luke D'Arcy, Product Marketing Manager, CSR commented: "Consumer demand for high-quality Bluetooth stereo headsets has been building for a while but it is only recently that products have started to come to the market".
"The ability to control music playback and voice calls from multiple sources simultaneously, on the same device, was an important breakthrough".
"Wi-Gear has implemented this advanced functionality in addition to ensuring that the quality of the calls is second to none, in an attractive design which should be popular with consumers".
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