Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Patent
1997-02-03
1998-12-01
Dorvil, Richemond
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
704229, G10L 700
Patent
active
058452435
ABSTRACT:
The compression method utilizes a combination of both lossy and lossless compression to achieve significant compression while retaining very high subjective quality of the reconstructed or decompressed signal. Methods and apparatus for compression and decompression of digital audio data are provided. In one preferred embodiment, the compression method or apparatus employs an approximation of a psychoacoustic model for wavelet packet decomposition and has a bit rate control feedback loop particularly well suited to matching the output bit rate of the data compressor to the bandwidth capacity of a communication channel.
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Smart Kevin
Yang Jiankan J.
Dorvil Richemond
U.S. Robotics Mobile Communications Corp.
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