发明名称 Robust downlink speech and noise detector
摘要 A voice activity detection process is robust to a low and high signal-to-noise ratio speech and signal loss. A process divides an aural signal into one or more bands. Signal magnitudes of frequency components and the respective noise components are estimated. A noise adaptation rate modifies estimates of noise components based on differences between the signal to the estimated noise and signal variability.
申请公布号 US8326620(B2) 申请公布日期 2012.12.04
申请号 US20090428811 申请日期 2009.04.23
申请人 HETHERINGTON PHILLIP A.;QNX SOFTWARE SYSTEMS LIMITED 发明人 HETHERINGTON PHILLIP A.
分类号 G10L15/20;G10L21/02 主分类号 G10L15/20
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