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METHOD AND APPARATUS FOR SIGNAL PROCESSING USING TRANSFORM-DOMAIN LOG-COMPANDING
METHOD AND APPARATUS FOR SIGNAL PROCESSING USING TRANSFORM-DOMAIN LOG-COMPANDING
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机译:利用变换域对数压缩进行信号处理的方法和装置
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摘要
A method and apparatus for audio signal processing by applying log companding on spectral domain or time domain representations of the audio signals to provide an encoded audio signal, which is decoded upon receipt. A frequency domain representation or time domain representation of the audio signal is computed by separating the audio signal into specific frequency bands, each having a coefficient. Log companding with different compression ratios is performed on each coefficient to provide an encoded signal. Upon receipt of the encoded signal, inverse log companding and time frequency or time scale reconstruction are performed to provide the audio signal.
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