Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Patent
1997-03-17
1999-08-10
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
379411, G01L 708
Patent
active
059373792
ABSTRACT:
A single-input spectral subtraction section 13 removes ambient noise around the caller from received signals. A characteristic correction section 14 estimates transmission characteristics from received and transmitted signals and corrects the transmitted signals to coincide with the received signals. And finally, a dual-input subtraction section 15 removes an automated voice by subtracting the output of the characteristic correction section 14 from the output of the single-input spectral subtraction section 13.
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Hudspeth David R.
NEC Corporation
Storm Donald L.
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