发明名称 |
Packet loss concealment for a sub-band predictive coder based on extrapolation of excitation waveform |
摘要 |
Systems and methods are described for performing packet loss concealment using an extrapolation of an excitation waveform in a sub-band predictive speech coder, such as an ITU-T Recommendation G.722 wideband speech coder. The systems and methods are useful for concealing the quality-degrading effects of packet loss in a sub-band predictive coder and address some sub-band architectural issues when applying excitation extrapolation techniques to such sub-band predictive coders. |
申请公布号 |
US8280728(B2) |
申请公布日期 |
2012.10.02 |
申请号 |
US20070835716 |
申请日期 |
2007.08.08 |
申请人 |
CHEN JUIN-HWEY;THYSSEN JES;ZOPF ROBERT W.;BROADCOM CORPORATION |
发明人 |
CHEN JUIN-HWEY;THYSSEN JES;ZOPF ROBERT W. |
分类号 |
G10L19/00;G10L13/00;G10L21/02 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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