Method and apparatus to detect and delimit foreground speech

Details Method and apparatus to detect and delimit foreground speech Method and apparatus to detect and delimit foreground speech

1997-10-24

2000-10-17

Dorvil, Richemond

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

704248, G10L 1520

Patent

active

061345245

ABSTRACT:
The present invention provides improved foreground-speech signal endpointing by computing a spectral stationarity statistic. This statistic is used by a finite state machine to endpoint speech. Endpointing using the spectral stationarity statistic is less susceptible to background noise than endpointing using conventional measures. The present invention uses frame-synchronous quantile estimation to generate a mask signal for signal to Noise Ratio Normalization.

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