发明名称 |
Noise reduction device and noise reduction method |
摘要 |
A noise reduction device comprises a SN ratio obtaining unit configured to obtain a SN ratio as a function of an estimated noise spectrum and an arithmetic product of an averaged power spectrum of the input signal and noise likeliness signal, and an output signal obtaining unit configured to obtain a output signal whose noise is reduced based on the input signal and the SN ratio obtained by the SN ratio obtaining unit. |
申请公布号 |
US8412520(B2) |
申请公布日期 |
2013.04.02 |
申请号 |
US20070927354 |
申请日期 |
2007.10.29 |
申请人 |
FURUTA SATORU;TAKAHASHI SHINYA;MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
FURUTA SATORU;TAKAHASHI SHINYA |
分类号 |
G10L21/02;G10L19/00;G10L19/14;G10L21/00;H04B1/10 |
主分类号 |
G10L21/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|