Method and device for detecting voice activity

Details Method and device for detecting voice activity Method and device for detecting voice activity

1998-03-19

2000-11-28

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

704226, 704213, G10L 1520

Patent

active

061547212

ABSTRACT:
The invention relates to a device intended for detecting in successive frames containing voice signals mixed with noise from various sources the periods of speech and those of only noise. By calculating for each frame its energy and the zero-crossing rate of its centered noise signal and by comparing these magnitudes with adaptive threshold values, the real state of the device is detected, which leads to specific controls adapted for each state.

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Yohtaro Yatsuzuka, "Highly Sensitive Speech Detector and High-Speed Voiceband Data Discrimiinator in DSI-ADPCM Systems", IEEE Transactions on Communications, vol. COM-30, No. 4, Apr. 1982, pp. 739-750.

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