发明名称 Voice activity detector
摘要 An enhancement system improves the estimate of noise from a received signal. The system includes a spectrum monitor that divides a portion of the signal at more than one frequency resolution. Adaptation logic derives a noise adaptation factor of the received signal. A plurality of devices tracks the characteristics of an estimated noise in the received signal and modifies multiple noise adaptation rates. Weighting logic applies the modified noise adaptation rates derived from the signal divided at a first frequency resolution to the signal divided at a second frequency resolution.
申请公布号 EP2866229(A2) 申请公布日期 2015.04.29
申请号 EP20140187554 申请日期 2007.04.30
申请人 2236008 ONTARIO INC. 发明人 HETHERINGTON, PHILLIP A
分类号 G10L21/0208;H03G9/02 主分类号 G10L21/0208
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