发明名称 |
Compression decoding and re-encoding |
摘要 |
An auxiliary data signal is derived from a received compression encoded audio signal during decoding of the signal and communicated with the decoded audio signal for use in re-encoding the signal. The auxiliary data signal may be communicated integrally with the audio signal, for example in the least significant bits, or may follow a different path. The provision of the auxiliary data signal may enable more transparent decoding and re-coding processes to take place, by allowing the coding decisions to match the coding decisions originally used; this can alleviate problems with quality reduction arising from cascaded decoding and re-coding processes. Application is to digital broadcasting in the studio environment with mixing, fading, etc.
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申请公布号 |
GB2321577(A) |
申请公布日期 |
1998.07.29 |
申请号 |
GB19970001616 |
申请日期 |
1997.01.27 |
申请人 |
* BRITISH BROADCASTING CORPORATION |
发明人 |
NICHOLAS DOMINIC * WELLS;ANDREW JAMES * MASON;JOHN ANDREW * FLETCHER;ANDREW KEVIN * MCPARLAND |
分类号 |
G10L19/14;H04B1/66;H04H60/04;(IPC1-7):H04B1/66;H03M7/30;H04H7/00;H04N5/60;H04N7/52 |
主分类号 |
G10L19/14 |
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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