发明名称 |
METHOD OF AND APPARATUS FOR CONVERTING AN AUDIO SIGNAL BETWEEN DATA COMPRESSION FORMATS |
摘要 |
Useful subband information which is present in a first audio signal (for example, MPEG 1 Layer II) is discarded in the conventional approach of format conversion, only to be regenerated when encoding to the target format (for example, MPEG 1 Layer III). Instead, in the present invention, this useful subband information is re-used directly or indirectly in order to eliminate the conventional requirement to fully decode to PCM and then encode again.
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申请公布号 |
WO0161686(A1) |
申请公布日期 |
2001.08.23 |
申请号 |
WO2001GB00690 |
申请日期 |
2001.02.19 |
申请人 |
RADIOSCAPE LIMITED;WOODWARD, MICHAEL, VINCENT;FERRIS, GAVIN, ROBERT |
发明人 |
WOODWARD, MICHAEL, VINCENT;FERRIS, GAVIN, ROBERT |
分类号 |
G10L19/032;G10L19/16;H03M7/30;(IPC1-7):G10L19/02;G10L19/14 |
主分类号 |
G10L19/032 |
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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