Multichannel audio signals or programs, including the most widely used stereo and 5.1 surround sounds, are considered as consisting of discrete channels. Since a multichannel signal is intended for reproduction of coherent sound field, there is strong correlation between its discrete channels. This inter-channel correlation can obviously be exploited to reduce bit rate.
KeywordsAudio Signal Stereo Imaging Sound Localization Critical Band Human Auditory System
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