Phase space methods and psychoacoustic models in lossy transform coding

Details Phase space methods and psychoacoustic models in lossy transform coding Phase space methods and psychoacoustic models in lossy transform coding

2007-07-03

arxiv.org/abs/0707.0514v1

Computer Science

Information Theory

Scientific paper

I present a method for lossy transform coding of digital audio that uses the Weyl symbol calculus for constructing the encoding and decoding transformation. The method establishes a direct connection between a time-frequency representation of the signal dependent threshold of masked noise and the encode/decode pair. The formalism also offers a time-frequency measure of perceptual entropy.

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