发明名称 |
Variable rate vocoder |
摘要 |
A method of speech signal compression, by variable rate coding of frames of digitized speech samples, comprising the steps of: determining a level of speech activity for a frame of digitized speech samples; selecting an encoding rate from a set of rates based upon said determined level of speech activity within said frame; coding said frame according to a predetermined coding format for said selected rate wherein each rate has a corresponding different coding format; providing for said frame a corresponding output data packet at said selected rate.
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申请公布号 |
EP1675100(A2) |
申请公布日期 |
2006.06.28 |
申请号 |
EP20060005794 |
申请日期 |
1992.06.03 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
JACOBS, PAUL E.;GARDNER, WILLIAM R.;LEE, CHONG U.;GILHOUSEN, KLEIN S.;LAM, KATHERINE S.;TSAI, MING-CHANG |
分类号 |
G10L11/06;G10L19/00;G10L;G10L11/02;G10L19/02;G10L19/04;G10L19/06;G10L19/12;G10L19/14;G10L21/02;G10L21/04;H03M7/30;H03M7/36;H04B1/66;H04J3/16;H04L1/00 |
主分类号 |
G10L11/06 |
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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