Tuesday, August 12, 2008

GN Netcom Introduces Noise Blackout for Headsets

GN Netcom introduced a new generation of noise cancellation technology that reduces ambient sound without compromising voice quality. The new "Noise Blackout" technology, which will initially be available in the new Jabra BT530 Bluetooth device, applies a directional principle to noise cancellation, reducing only surrounding noise and not distorting the users' voice. The technology uses dual microphones to capture sound, intelligently filtering background noise only. Other noise cancellation headsets cancel noise by cutting away audio frequency and reducing sound quality.


DSP technology uses the dual microphones to determine the direction of the sound or noise based on the sound delay between the two microphones, making it possible to filter out unwanted noise. The DSP also uses the dual microphone system to significantly reduce stationary noise. To eliminate the "tinny" effect, sound emanating from the mouth is enhanced and transmitted while all other sound is classified as noise and is filtered out.


"Our Noise Blackout technology is a completely new and proprietary technology that not only allows crystal clear sound but eliminates the 'tinny' sound that many noise cancellation headsets are plagued with," said Anne Rasmussen, Vice President, Mobile Division, GN Netcom. "The first of many products in the Jabra line to feature this technology, the BT530 also features A2DP for streaming music and Multiuse functionality."http://www.jabra.com

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