发明名称 |
Efficient filter bank computation for audio coding |
摘要 |
Low-complexity synthesis filter bank for MPEG audio decoding uses a factoring of the 64x32 matrixing for the inverse-quantized subband coefficients. Factoring into non-standard 4-point discrete cosine and sine transforms, point-wise multiplications and combinations, and non-standard 8-point discrete cosine and sine transforms limits memory requirements and computational complexity.
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申请公布号 |
US7512536(B2) |
申请公布日期 |
2009.03.31 |
申请号 |
US20050120365 |
申请日期 |
2005.05.02 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
MANSOUR MOHAMED F. |
分类号 |
G10L19/02;G10L13/00;G10L19/06;G10L21/00;H04B1/16;H04B1/20;H04B1/46 |
主分类号 |
G10L19/02 |
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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