发明名称 |
SPEECH DEREVERBERATION METHODS, DEVICES AND SYSTEMS |
摘要 |
Improved audio data processing method and systems are provided. Some implementations involve dividing frequency domain audio data into a plurality of subbands and determining amplitude modulation signal values for each of the plurality of subbands. A band-pass filter may be applied to the amplitude modulation signal values in each subband, to produce band-pass filtered amplitude modulation signal values for each subband. The band-pass filter may have a central frequency that exceeds an average cadence of human speech. A gain may be determined for each subband based, at least in part, on a function of the amplitude modulation signal values and the band-pass filtered amplitude modulation signal values. The determined gain may be applied to each subband. |
申请公布号 |
US2016035367(A1) |
申请公布日期 |
2016.02.04 |
申请号 |
US201414782746 |
申请日期 |
2014.03.31 |
申请人 |
DOLBY LABORATORIES LICENSING CORPORATION |
发明人 |
GOESNAR Erwin;DICKINS Glenn N.;GUNAWAN David |
分类号 |
G10L21/0232;G10L25/21;G10L25/18 |
主分类号 |
G10L21/0232 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
San Francisco CA US |