Title:
VOICE DETECTION DEVICE, VOICE DETECTION METHOD, AND VOICE DETECTION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2011/077924
Kind Code:
A1
Abstract:
Provided are a voice detection device, a voice detection method, and a voice detection program for performing voice section detection with high accuracy even under a noise environment.
A feature amount calculation unit (301) calculates a feature amount for each frame. A voice/non-voice judgment unit (302) compares the feature amount calculated and a voice detection threshold value with each other, thereby judging whether a section is a voice section or a non-voice section. A long section feature amount calculation unit (303) calculates a long section feature amount, which is the feature amount of the voice section or the non-voice section, on the basis of a statistic value of the feature amounts of a plurality of frames. A threshold value update unit (304) uses the long section feature amount calculated, to calculate a non-voice probability, which is such a probability that the voice section and the non-voice section are a section to which a signal based on non-voice is input, and update the voice detection threshold value on the basis of the non-voice probability calculated.
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Inventors:
TANAKA, Daisuke (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
田中 大介 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
ARAKAWA, Takayuki (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
荒川 隆行 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
HANAZAWA, Ken (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
田中 大介 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
ARAKAWA, Takayuki (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
荒川 隆行 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
HANAZAWA, Ken (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
Application Number:
JP2010/071620
Publication Date:
June 30, 2011
Filing Date:
November 26, 2010
Export Citation:
Assignee:
NEC CORPORATION (7-1Shiba 5-chome, Minato-ku Tokyo, 01, 〒1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 〒1088001, JP)
TANAKA, Daisuke (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
田中 大介 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
ARAKAWA, Takayuki (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
荒川 隆行 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 〒1088001, JP)
TANAKA, Daisuke (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
田中 大介 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
ARAKAWA, Takayuki (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
荒川 隆行 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
International Classes:
G10L11/00; G10L15/04
Attorney, Agent or Firm:
ASAI, Toshio (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
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