MPEG Audio Compression Advances
Recent MPEG audio coding work continues the quest for ever greater compression efficiency. It uses the tools of the MPEG-1 and MPEG-2 perceptual coders and adds a number of new mechanisms to achieve greater signal compression, giving it the following “compression toolbox”: Perceptually shaped quantization noise Parametric coding of high-band spectral components Parametric coding of the multi-channel of multi-object sound stage
KeywordsAudio Signal Side Information Human Auditory System Quadrature Mirror Filter Audio Code
The author would like to thank Oliver Hellmuth, Fraunhofer Institute for Integrated Circuits, for permission to use a number of his SAOC-related figures.
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