发明授权
- 专利标题： Reverberation suppression device, reverberation suppression method, and computer-readable storage medium storing a reverberation suppression program
- 专利标题（中）： 混响抑制装置，混响抑制方法以及存储混响抑制程序的计算机可读存储介质
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申请号： US13532908申请日： 2012-06-26
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公开(公告)号： US09093077B2公开(公告)日： 2015-07-28
- 发明人: Takeshi Otani , Masanao Suzuki , Taro Togawa
- 申请人： Takeshi Otani , Masanao Suzuki , Taro Togawa
- 申请人地址： JP Kawasaki
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 当前专利权人地址： JP Kawasaki
- 代理机构： Staas & Halsey LLP
- 优先权： JP2011-207508 20110922
- 主分类号： H04B3/20
- IPC分类号： H04B3/20 ; G10L21/0208
摘要：
A reverberation suppression device includes an analyzer configured to analyze change over time in the power of an input signal obtained from a microphone in response to sound input, and thereby compute the decrease per unit time in the power of the input signal in a reverb segment following the end of a segment in which the sound is produced; and a suppression controller configured to control a suppression gain which indicates the rate at which the input signal is attenuated, on the basis of analysis results from the analyzer.
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