Method and apparatus to detect voice activity by adding a...

Details Method and apparatus to detect voice activity by adding a... Method and apparatus to detect voice activity by adding a...

2008-05-23

2011-10-25

Lerner, Martin (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S213000, C704S226000

Reexamination Certificate

active

08046215

ABSTRACT:
A method and apparatus to detect voice activity by using a zero-crossing rate includes removing noise included in an audio signal, adding a random signal having energy of a predetermined size to the audio signal from which noise is removed, extracting predetermined voice detection parameters from the audio signal to which the random signal is added, and comparing the extracted predetermined voice detection parameters with a threshold value and determining voice and non-voice activities.

REFERENCES:
patent: 5159638 (1992-10-01), Naito et al.
patent: 5295223 (1994-03-01), Saito
patent: 5991718 (1999-11-01), Malah
patent: 6349278 (2002-02-01), Krasny et al.
patent: 6453285 (2002-09-01), Anderson et al.
patent: 6560332 (2003-05-01), Christensson et al.
patent: 6597787 (2003-07-01), Lindgren et al.
patent: 6691085 (2004-02-01), Rotola-Pukkila et al.
patent: 6993481 (2006-01-01), Skoglund et al.
patent: 7376558 (2008-05-01), Gemello et al.
patent: 7447279 (2008-11-01), Wilson
patent: 7653536 (2010-01-01), Tackin et al.
patent: 2002/0054685 (2002-05-01), Avendano et al.
patent: 2003/0179888 (2003-09-01), Burnett et al.
patent: 2004/0068399 (2004-04-01), Ding
patent: 2006/0069551 (2006-03-01), Chen et al.
patent: 2006/0277038 (2006-12-01), Vos et al.
patent: 2007/0055508 (2007-03-01), Zhao et al.
patent: 2008/0162151 (2008-07-01), Cho
patent: 2009/0125305 (2009-05-01), Cho
patent: 2001-73377 (2001-08-01), None
patent: 1020040047428 (2004-06-01), None
International Search Report issued Nov. 21, 2008 in International Application No. PCT/KR2008/003231.
Ahmad et al. “An isolated speech endpoint detector using multiple speech features”, TENCON 2004, Nov. 21, 2004, vol. 2, pp. 403-406.
Qiang et al. “On Prefiltering and Endpoint Detection of Speech Signal”, Proceedings of ICSP 1998, Oct. 12, 1998, vol. 1, pp. 749-752.

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