发明名称 |
SIGNAL DE-NOISING METHOD, SIGNAL DE-NOISING APPARATUS, AND AUDIO DECODING SYSTEM |
摘要 |
In the field of audio encoding/decoding technologies, a signal de-noising method is provided. The method includes: selecting, according to a degree of inter-frame correlation of a frame where a spectral coefficient to be adjusted resides, at least two spectral coefficients having high correlation with the spectral coefficient to be adjusted; performing weighting on the at least two selected spectral coefficients and the spectral coefficient to be adjusted to acquire a predicted value of the spectral coefficient to be adjusted; and adjusting a spectrum of a decoded signal by using the acquired predicted value, and outputting the adjusted decoded signal. A signal de-noising apparatus corresponding to the signal de-noising method and an audio decoding system using the signal de-noising apparatus are also provided.
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申请公布号 |
US2012022878(A1) |
申请公布日期 |
2012.01.26 |
申请号 |
US201113248725 |
申请日期 |
2011.09.29 |
申请人 |
CHEN LONGYIN;MIAO LEI;HU CHEN;LIU ZEXIN;ZHANG QING;HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
CHEN LONGYIN;MIAO LEI;HU CHEN;LIU ZEXIN;ZHANG QING |
分类号 |
G10L19/00;G10L19/24;G10L21/02;G10L21/038 |
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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