发明名称 |
Scaled window overlap add for mixed signals |
摘要 |
A method for overlap-adding signals useful for performing frame loss concealment (FLC) in an audio decoder as well as in other applications. The method uses a dynamic mix of windows to overlap two signals whose normalized cross-correlation may vary from zero to one. If the overlapping signals are decomposed into a correlated component and an uncorrelated component, they are overlap-added separately using the appropriate window, and then added together. If the overlapping signals are not decomposed, a weighted mix of windows is used. The mix is determined by a measure estimating the amount of cross-correlation between overlapping signals, or the relative amount of correlated to uncorrelated signals. |
申请公布号 |
US8731913(B2) |
申请公布日期 |
2014.05.20 |
申请号 |
US20070734814 |
申请日期 |
2007.04.13 |
申请人 |
ZOPF ROBERT W.;CHEN JUIN-HWEY;BROADCOM CORPORATION |
发明人 |
ZOPF ROBERT W.;CHEN JUIN-HWEY |
分类号 |
G10L21/00;G10L13/00;G10L19/00;G10L21/02 |
主分类号 |
G10L21/00 |
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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