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audio codec

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audio codec
(1) (audio enCOder/DECoder) Software that compresses and decompresses a digital audio signal. MP3, Windows Media Audio (WMA), Dolby Digital and DTS are examples of popular codecs that compress and decompress digital audio. The audio codec may also be a hardware circuit. See codec examples, codec, Windows Media formats, QuickTime, audio compression, perceptual audio coding and G. standards.

(2) (audio enCOder/DECoder) A hardware circuit that converts sound waves into PCM 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 #1 above). If the codec is specialized for human voice, it is known as a "speech codec," "voice codec" or "vocoder" (see speech codec). See sampling and codec.
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The key component in providing excellent sound is the MPEG Enhanced Low Delay AAC audio codec, which ensures low-delay hi-fi quality even at low bit-rates.
High quality video, telephone conferencing may be round the corner by Asian News International
Final chapters discuss audio coding tools for improving the performance and functionality of MPEG AAC, including interchannel redundancy removal and channel-scalable decoding; adaptive Karhunen-Loeve transform, progressive syntax-rich multichannel audio codec, and error-resilient scalable audio codec design.
High-Fidelity Multichannel Audio Coding, 2d ed by SciTech Book News
8v Dual Voltage I/O support, Magic Gates, Memory Stick, USB, uWire, camera, and enhanced audio CODEC support.
TI DELIVERS FIRST DSP-BASED OMAP APPLICATION by EDP Weekly's IT Monitor
 
 
 
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