Encoding system and decoding system for audio signals

Details Encoding system and decoding system for audio signals Encoding system and decoding system for audio signals

H - Electricity

04

B

H04B 1/66 (2006.01) G10L 19/02 (2006.01)

Patent

CA 2194199

An encoding system comprises an input terminal for receiving an input signal, a signal converting portion for converting the input signal into frequency-domain signals and grouping several frequency-domain signals into blocks, an analyzing portion for analyzing the input signal and the frequency-domain signals and obtaining an allowable error, a selecting portion for selecting one of a plurality of quantizing portions that quantizes frequency-domain signals of each block corresponding to the allowable error, a plurality of quantizing portions for quantizing frequency-domain signals corresponding to selection information and calculating amplitude information and codes, a multiplexing portion for multiplexing the amplitude information, codes, and selection information, and an output terminal for outputting the multiplexed signal.

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