发明名称 |
Apparatus and method for error concealment in low-delay unified speech and audio coding (USAC) |
摘要 |
An apparatus (100) for generating spectral replacement values for an audio signal is provided. The apparatus (100) comprises a buffer unit (110) for storing previous spectral values relating to a previously received error-free audio frame. Moreover, the apparatus (100) comprises a concealment frame generator (120) for generating the spectral replacement values, when a current audio frame has not been received or is erroneous. The previously received error-free audio frame comprises filter information, the filter information having associated a filter stability value indicating a stability of a prediction filter. The concealment frame generator (120) is adapted to generate the spectral replacement values based on the previous spectral values and based on the filter stability value. |
申请公布号 |
AU2012217215(B2) |
申请公布日期 |
2015.05.14 |
申请号 |
AU20120217215 |
申请日期 |
2012.02.13 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.;TECHNISCHE UNIVERSITAET ILMENAU |
发明人 |
LECOMTE, JEREMIE;DIETZ, MARTIN;SCHNABEL, MICHAEL;SPERSCHNEIDER, RALPH |
分类号 |
G10L19/012 |
主分类号 |
G10L19/012 |
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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