发明名称 |
AUDIO SIGNAL ENCODER, AUDIO SIGNAL DECODER, METHOD FOR PROVIDING AN ENCODED REPRESENTATION OF AN AUDIO CONTENT, METHOD FOR PROVIDING A DECODED REPRESENTATION OF AN AUDIO CONTENT AND COMPUTER PROGRAM FOR USE IN LOW DELAY APPLICATIONS |
摘要 |
An audio signal encoder includes a transform-domain path which obtains spectral coefficients and noise-shaping information on the basis of a portion of the audio content, and which windows a time-domain representation of the audio content and applies a time-domain-to-frequency-domain conversion. The audio signal decoder includes a CELP path to obtain a code-excitation information and a LPC parameter information. A converter applies a predetermined asymmetric analysis window in both if a current portion is followed by a subsequent portion to be encoded in the transform-domain mode or in the CELP mode. Aliasing cancellation information is selectively provided in the latter case. |
申请公布号 |
EP2473995(B9) |
申请公布日期 |
2016.12.21 |
申请号 |
EP20100768928 |
申请日期 |
2010.10.19 |
申请人 |
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. |
发明人 |
GEIGER, Ralf;SCHNELL, Markus;LECOMTE, Jérémie;SCHMIDT, Konstantin;FUCHS, Guillaume;RETTELBACH, Nikolaus |
分类号 |
G10L19/04;G10L19/02;G10L19/022;G10L19/18;G10L19/20 |
主分类号 |
G10L19/04 |
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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