发明申请
- 专利标题： Speech coding system and method using bi-directional mirror-image predicted pulses
- 专利标题（中）： 使用双向镜像预测脉冲的语音编码系统和方法
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申请号： US12284623申请日： 2008-09-23
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公开(公告)号： US20090043574A1公开(公告)日： 2009-02-12
- 发明人: Yang Gao , Adil Benyassine , Jes Thyssen , Eyal Shlomot , Huan-yu Su
- 申请人： Yang Gao , Adil Benyassine , Jes Thyssen , Eyal Shlomot , Huan-yu Su
- 申请人地址： US CA Newport Beach
- 专利权人： Conexant Systems, Inc.,Mindspeed Technologies, Inc.
- 当前专利权人： Conexant Systems, Inc.,Mindspeed Technologies, Inc.
- 当前专利权人地址： US CA Newport Beach
- 主分类号： G10L19/12
- IPC分类号： G10L19/12 ; G10L19/00
摘要：
There is provided a method of decoding speech data generated from a speech signal. The method comprises receiving the speech data having at least one main pulse in a subframe of the speech data; generating a first predicted pulse, based on the at least one main pulse, on one side of the main pulse in the subframe of the speech data, wherein the first predicted pulse has a lower gain than the main pulse; generating a second predicted pulse, as a mirror image of the first predicted pulse on a reverse time scale, on the other side of the main pulse in the subframe of the speech data; reconstructing the speech signal using the at least one main pulse, the first predicted pulse and the second predicted pulse.
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