ENCODING OF STEREOPHONIC SIGNALS

摘要

A stereophonic signal is converted into a mid channel signal and a side channel signal. Noise is added to the side channel signal. The amount of noise is selected depending on masking thresholds for at least two channels of the stereophonic signal. The mid channel signal and the modified side channel signal are quantized for transmission. Alternatively or in addition, a set of quantization parameter for the quantization of the side channel signal is selected depending on the masking thresholds.