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
KeywordsEntropy Fatigue Covariance Coherence Aliasing
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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