发明名称 |
Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal |
摘要 |
When encoding an audio signal, the audio signal is first encoded with the first encoder to obtain a first encoder output signal. This first encoder output signal is written into a bit stream. It is further decoded by a decoder to provide a decoded audio signal. The decoded audio signal is compared with the original audio signal to obtain a residual signal. The residual signal is then encoded via a second encoder to provide a second encoder output signal which is also written into a bit stream. The first encoder has a first time or frequency resolution. The second encoder has a second time or frequency resolution. The first resolution differs from the second resolution, so that in a respective decoder, an audio signal with both a high time resolution as well as a high frequency resolution can be retrieved.
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申请公布号 |
US2006167683(A1) |
申请公布日期 |
2006.07.27 |
申请号 |
US20050317521 |
申请日期 |
2005.12.22 |
申请人 |
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发明人 |
HOERICH HOLGER;SCHUG MICHAEL;NEUSINGER MATTHIAS |
分类号 |
G10L19/00;G10L19/02;G10L19/022;G10L19/14;G10L19/24 |
主分类号 |
G10L19/00 |
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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