Robust noise suppression system in adverse echo co

专利名称：Robust noise suppression system in adverse

echo conditions

发明人：Carlo Murgia,Ye Jiang,Michael M.

Goodwin,Mark Every

申请号：US12860428申请日：20100820公开号：US09343073B1公开日：20160517

专利附图：

摘要：The present technology provides adaptive noise and echo reduction of anacoustic signal which can overcome or substantially alleviate problems associated with

mistaken adaptation of speech and noise models to acoustic echo. The presenttechnology carries out a multi-faceted analysis to identify echo within the near-endacoustic signal to derive an echo model. Echo classification information regarding thederived echo model is then utilized to build near-end speech and noise models. Theseecho, speech, and noise models are then used to generate one or more signalmodifications applied to the acoustic signal to preserve the desired near-end speechsignal and reduce the echo and near-end noise signals. By building near-end speech andnoise models utilizing echo classification information, the present technology can preventadaptation of the speech and noise model to the acoustic echo.

申请人：Carlo Murgia,Ye Jiang,Michael M. Goodwin,Mark Every

地址：Sunnyvale CA US,Sunnyvale CA US,Scotts Valley CA US,Palo Alto CA US

国籍：US,US,US,US

代理机构：Carr & Ferrell LLP

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