发明授权
US08589152B2 Device, method and program for voice detection and recording medium
有权
用于语音检测和记录介质的设备，方法和程序
- 专利标题： Device, method and program for voice detection and recording medium
- 专利标题（中）： 用于语音检测和记录介质的设备，方法和程序
-
申请号： US12993134申请日： 2009-05-26
-
公开(公告)号： US08589152B2公开(公告)日： 2013-11-19
- 发明人: Tadashi Emori , Masanori Tsujikawa
- 申请人： Tadashi Emori , Masanori Tsujikawa
- 申请人地址： JP Tokyo
- 专利权人： NEC Corporation
- 当前专利权人： NEC Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JP2008-139541 20080528
- 国际申请： PCT/JP2009/059610 WO 20090526
- 国际公布： WO2009/145192 WO 20091203
- 主分类号： G10L21/02
- IPC分类号： G10L21/02 ; G10L11/06
摘要：
To this end, a voice detection device includes a band-based power calculation unit that calculates a total of signal power values (sub-band power) of signals entered from the microphones from one preset frequency width (sub-band) to another. The voice detection device also includes a band-based noise estimation unit that estimates the sub-band based noise power, and a sub-band based SNR calculation unit. The sub-band based SNR calculation unit calculates a sub-band SNR from one sub-band to another to output the largest one of the sub-band SNRs as an SNR for a microphone of interest. The voice detection device further includes a voice/non-voice decision unit that determines the voice/non-voice using the SNR for the microphone of interest.
公开/授权文献
信息查询
