发明名称 |
AUDIO ENCODER AND DECODER FOR ENCODING AND DECODING FRAMES OF A SAMPLED AUDIO SIGNAL |
摘要 |
An audio encoder adapted for encoding frames of a sampled audio signal to obtain encoded frames, wherein a frame includes a number of time domain audio samples. The audio encoder includes a predictive coding analysis stage for determining information on coefficients of a synthesis filter and a prediction domain frame based on a frame of audio samples. The audio encoder further includes a time-aliasing introducing transformer for transforming overlapping prediction domain frames to the frequency domain to obtain prediction domain frame spectra, wherein the time-aliasing introducing transformer is adapted for transforming the overlapping prediction domain frames in a critically-sampled way. Moreover, the audio encoder includes a redundancy reducing encoder for encoding the prediction domain frame spectra to obtain the encoded frames based on the coefficients and the encoded prediction domain frame spectra. |
申请公布号 |
ZA201009257(B) |
申请公布日期 |
2011.10.26 |
申请号 |
ZA20100009257 |
申请日期 |
2010.12.23 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E V;VOICEAGE CORP |
发明人 |
GEIGER RALF;GRILL BERNHARD;BESSETTE BRUNO;GOURNAY PHILIPPE;FUCHS GUILLAUME;MULTRUS MARKUS;NEUENDORF MAX;SCHULLER GERALD |
分类号 |
G06F;G10L |
主分类号 |
G06F |
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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