发明名称 |
Enhancing source coding systems by adaptive transposition |
摘要 |
The present invention relates to a new method for enhancement of source coding systems using high-frequency reconstruction. The invention teaches that tonal signals can be classified as either pulse-train-like or non-pulse-train-like. Relying on this classification, significant improvements on the perceived audio quality can be obtained by adaptive switching of transposers. The invention shows that the so-switched transposers must have fundamental differences in their characteristics.
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申请公布号 |
US7260520(B2) |
申请公布日期 |
2007.08.21 |
申请号 |
US20010022526 |
申请日期 |
2001.12.20 |
申请人 |
CODING TECHNOLOGIES AB |
发明人 |
HENN FREDRIK;KJOERLING KRISTOFER;EKSTRAND PER;VILLEMOES LARS |
分类号 |
G10L13/00;G10L19/14;G10L11/04;G10L21/02;G10L21/038;H03M7/30 |
主分类号 |
G10L13/00 |
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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