Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Patent
1996-07-15
1999-09-07
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
704228, 704233, G10L 302, G10L 900
Patent
active
059501545
ABSTRACT:
A noise filter technique estimates noise in speech that has been processed by Call Multiplication Equipment. The received signal has speech frames and interspersed fill-noise frames inserted at a satellite signal receiving station. The filtering technique removes the fill-noise from the signal. The remaining speech frames are analyzed such that the speech frames having the lowest power values are used to create a histogram of power/frequency. This histogram contains information from which the noise-in-speech power spectrum is derived.
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Medaugh Raymond Stephen
Shaya Ronald
AT&T Corp.
Hudspeth David R.
Sax Robert Louis
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