Product category: Design and Development Software
News Release from: Cambridge Silicon Radio | Subject: BlueLab 3.2
Edited by the Electronicstalk Editorial Team on 8 August 2005
Development system boosts
Bluetooth voice quality
Clear Voice Capture technology is now available as part of the BlueLab development system
CSR's Clear Voice Capture (CVC) technology is now available as part of the BlueLab development system. By using BlueLab 3.2, software engineers can now easily design a mono or stereo headset or a car hands-free kit containing CVC, which enhances voice quality when making calls. CSR acquired CVC technology via its purchase of Clarity Technologies in March 2005.
This article was originally published on Electronicstalk on 8 August 2005 at 8.00am (UK)
Related stories
Design speeds development of internet radio
CSR's low cost RadioPro design has enabled NTEEP to produce a versatile module that can easily be adopted to provide Wi-Fi functionality
Bluetooth IC makes photo frames multimedia
Reference design for digital photo frames allows the frame to not only receive pictures but also to play audio streamed via Bluetooth, providing a richer experience for the consumer
CVC technology features a noise suppression algorithm which extracts the user's voice from the extraneous noise of the environment.
The advanced echo suppression system also removes all unwanted echoes so that headset designers can position the microphone close to a speaker (even a powerful one) in order to satisfy consumer demand for compact and attractive products.
A microphone can now also be reliably integrated into a stereo headset earpiece and be able to offer high voice quality while giving no outward indication of its presence.
Further reading
Single-chip Wi-Fi connects digital photo frame
UniFi will provide users with the ability to send their favourite photos directly to an 8in LCD display, without using wires
Collaboration slashes GPS costs
CSR's software approach eliminates the need for a dedicated GPS baseband, reducing the cost of the module to less than half of what competitors are able to offer
CSR has addressed the cost and current consumption issues linked to the implementation of echo and noise suppression technologies through both its BlueCore3-Multimedia (BC3-MM) silicon and CVC.
The efficient, in-built DSP removes the need for designers to purchase an expensive external processor for audio analysis.
compared with a general purpose RISC based processor, the DSP is also more efficient in audio processing.
This reduces the power consumption to a level similar to today's generation of headsets without integrated echo and noise suppression.
Jim Wargnier, Technical Manager, CSR Detroit commented: 'The DSP architecture in BC3-MM allows us to implement CVC, the world's leading voice enhancement software for Bluetooth devices, in the most efficient way'.
Wargnier continued: 'The power consumption is half that of a RISC based processor and integrating the DSP also greatly reduces costs'.
Luke D'Arcy, Product Marketing Manager, CSR added: 'Mainstream consumers are demanding better voice quality from Bluetooth headsets.
BlueLab 3.2 allows designers to respond by including world class echo and noise suppression.
Thanks to the integrated DSP in BlueCore3-Multimedia, this no longer means increasing cost or power consumption excessively.
D'Arcy continued: 'CVC will enable a whole new generation of high performance Bluetooth headsets, expanding the market to the most discerning users'.
'CSR intends to incorporate CVC into future solutions for mono and stereo headsets, allowing designers to achieve world class quality as standard'.
• Cambridge Silicon Radio: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
