发明名称 |
Recovering an erased voice frame with time warping |
摘要 |
An approach to reduce the quality impact due to lost voiced frame data is presented. The decoder reconstructs the lost frame using the pitch track from a directly prior frame. When the decoder receives the next frame data, it makes a copy of the reconstructed frame data and continuously time warping it and the received frame data so that the peaks of their pitch cycles coincide. Subsequently, the decoder fades out the time-warped reconstructed frame data while fading in the time-warped received frame data. Meanwhile, the endpoint of the received frame data remains fixed to preclude discontinuity with the subsequent frame.
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申请公布号 |
US7024358(B2) |
申请公布日期 |
2006.04.04 |
申请号 |
US20040799504 |
申请日期 |
2004.03.11 |
申请人 |
MINDSPEED TECHNOLOGIES, INC. |
发明人 |
SHLOMOT EYAL;GAO YANG |
分类号 |
G10L15/12;G06F11/00;G10L11/04;G10L19/00;G10L19/04;G10L19/08;G10L19/12;G10L19/14;G10L21/02 |
主分类号 |
G10L15/12 |
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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