发明名称 Method and system for updating noise estimates during pauses in an information signal
摘要 The invention relates to an improved adaptive spectral estimator for estimating the spectral components in a signal containing both an information signal, such as speech, and noise. A method and system provide for generating noise estimates and then only updating the noise estimates during pauses in an information signal, when speech or other information is not detected, rather than continuously updating the noise estimates. A noise estimate is calculated for each frequency band and provides for the inclusion of a variable mathematical factor that can be set by the user to produce the best sound quality.
申请公布号 US6108610(A) 申请公布日期 2000.08.22
申请号 US19980170594 申请日期 1998.10.13
申请人 NOISE CANCELLATION TECHNOLOGIES, INC. 发明人 WINN, STEVE
分类号 G01R23/16;G10L11/00;G10L11/02;G10L15/20;G10L21/02;(IPC1-7):G01R23/00 主分类号 G01R23/16
代理机构 代理人
主权项
地址
您可能感兴趣的专利