基本信息:
- 专利标题： METHOD AND DEVICE FOR NOISE REDUCTION
- 专利标题（中）：方法和设备进行降噪
- 申请号：EP04737686.8 申请日：2004-07-12
- 公开(公告)号：EP1652404A1 公开(公告)日：2006-05-03
- 发明人： DOCLO, Simon , SPRIET, Ann , MOONEN, Marc , WOUTERS, Jan
- 申请人： Cochlear Limited
- 申请人地址： 14-16 Mars Road Lane Cove, New South Wales 2066 AU
- 专利权人： Cochlear Limited
- 当前专利权人： Cochlear Limited
- 当前专利权人地址： 14-16 Mars Road Lane Cove, New South Wales 2066 AU
- 代理机构： Van Malderen, Joelle
- 优先权： AU2003903575 20030711; AU2004901931 20040408
- 国际公布： WO2005006808 20050120
- 主分类号： H04R3/00
- IPC分类号： H04R3/00 ; G10L21/02
摘要：
The present invention is related to a method to reduce noise in a noisy speech signal, comprising the steps of - applying at least two versions of the noisy speech signal to a first filter. The first filter outputs a speech reference signal and at least one noise reference signal, - applying a filtering operation to each of the at least one noise reference signals, and - subtracting from the speech reference signal each of the filtered noise reference signals. The filtering operation is performed with filters having filter coefficients determined by taking into account speech leakage contributions in the at least one noise reference signal.
公开/授权文献:
- EP1652404B1 METHOD AND DEVICE FOR NOISE REDUCTION 公开/授权日：2010-11-03