发明名称 |
A TRANSCODING SCHEME BETWEEN CELP-BASED SPEECH CODES |
摘要 |
Transcoding a CELP based compressed voice bitstream from source codec to destination codec relate to embodiments of a system and method. The method includes processing a source codec input bitstream to unpack (1) CELP parameters from the input CELP bistream and may interpolate (2) the unpacked CELP parameters from is a difference of destination codec parameters and source codec parameters exists. If the method maps (4) CELP from source codec format to a destination codec format, the parameter mapping strategy may be singly preset or selected (3). The method inludes encoding the CELP parameters for the destination codec and processing a destination CELP bitstream by packing (7) the CELP parameters for the destination codec. |
申请公布号 |
AU2003207498(A1) |
申请公布日期 |
2003.07.24 |
申请号 |
AU20030207498 |
申请日期 |
2003.01.08 |
申请人 |
DILITHIUM NETWORKS, INC. |
发明人 |
MARWAN, A. JABRI;JIANWEI WANG;STEPHEN GOULD |
分类号 |
G10L19/04;G10L19/12;G10L19/14;H03M7/30 |
主分类号 |
G10L19/04 |
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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