The CVC 5.0 audio enhancement and noise suppression software is being made available both as software and in a range of headset chips.

The audio enhancements and noise suppression provides improvements to the near and far end, as well as providing packet loss and bit error concealment.

The modular suite of advanced speech processing algorithms works with both single and dual-microphone headsets. CSR says the dual-microphone option delivers more than 30dB of dynamic noise suppression in harsh acoustic conditions irrespective of the direction of noise.

CVC 5.0 features in CSRs Blue Core ROM mono headset solution BC6140 and as a software feature in BlueCore5-Multimedia. It will also be available on the forthcoming BC6150 chip.

The three headset chips in the range between them cater for a range of price points and features. Compatible with the v2.1+EDR Bluetooth specification, the devices boast advanced features including CSR's Proximity Pairing technology, a faster user interface, Handsfree Profile (HFP) multipoint and programmable audio prompts.

"Our BlueCore ROM devices provide the most comprehensive range of single chip solutions for mono headsets," said Anthony Murray, senior vice president of CSR's Audio and Connectivity Business Unit. "Not only do they cover every segment of the market, but they include new features such as Proximity Pairing and CVC 5.0."

Murray added in the first quarter of the year CSR won around 80 percent of mono headsets deign-ins "and these new products show why CSR continues to be the silicon of choice for headsets."

All three chips feature CSR's Proximity Pairing technology. This allows the headset to find, and then pair with, the Bluetooth source device that is physically closest to it. The headset initiates the pairing activity and the user simply has to accept the incoming invitation on the source device.