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perceptual coding
Last modified: Monday, March 12, 2007 

In digital audio perceptual coding is a coding method used to reduce the amount of data needed to produce high-quality sound. Perceptual coding takes advantage of the human ear, screening out a certain amount of sound that is perceived as noise. In perceptual coding you reduce or eliminate the sounds that the ear would perceive as noise.

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Perceptual Coding: How Mp3 Compression Works
The requirement that encoded video and audio must be retrievable from a medium delivering only 1.5 million bits per second dictated that one of the principal concerns of this document was data compression, since the transmission of uncompressed audio and video streams would require many more bits per second.

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Audio

Multimedia

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data compression

digital audio

digital audio player

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motion compensation and prediction

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motion vector

video

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video encoding


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Shop for: Books - Roy H. Williams - Thought Particles: Building Blocks of Perceptual Reality; Binary Code of the Mind Products
Release Date: March 25, 2003

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