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audio codec
(redirected from Audio coding)

   Also found in: Wikipedia 0.06 sec.

audio codec

(1) A hardware circuit that converts analog voice into PCM or ADPCM digital code and vice versa. The term may refer to only the A/D and D/A conversion, or it may include the compression technique for further reducing the signal (definition #2 below). See sampling and codec.

(2) Hardware and/or software that compresses and decompresses a PCM or ADPCM digital audio signal. If the codec is specialized for human voice, it is known as a "speech codec," "voice codec" or "vocoder" (see speech codec). See audio compression, perceptual audio coding, codec examples and G. standards.



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The next step is to use perceptual audio coding to further compress the amount of digital data.
The three scientists are honored on behalf of the large team of Fraunhofer researchers and engineers that have been developing the world famous mp3 audio coding format since the early eighties.
NASDAQ: HLIT) is using Fraunhofer's floating-point MPEG-4 High Efficiency Advanced Audio Coding (HE-AAC) and MPEG-1 Layer-2 audio coding software for the DiviCom([R]) Electra[TM] family of broadcast encoders.
 
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