发明名称 |
Audio time scale modification algorithm for dynamic playback speed control |
摘要 |
A modified synchronized overlap add (SOLA) algorithm for performing high-quality, low-complexity audio time scale modification (TSM) is described. The algorithm produces good output audio quality with a very low complexity and without producing additional audible distortion during dynamic change of the audio playback speed. The algorithm may achieve complexity reduction by performing the maximization of normalized cross-correlation using decimated signals. By updating the input buffer and the output buffer in a precise sequence with careful checking of the appropriate array bounds, the algorithm may also achieve seamless audio playback during dynamic speed change with a minimal requirement on memory usage. |
申请公布号 |
EP2001013(A2) |
申请公布日期 |
2008.12.10 |
申请号 |
EP20080009825 |
申请日期 |
2008.05.29 |
申请人 |
BROADCOM CORPORATION |
发明人 |
CHEN, JUIN-HWEY;ZOPF, ROBERT |
分类号 |
G10L21/04 |
主分类号 |
G10L21/04 |
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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