发明名称 |
ENCODER FOR ENCODING AN AUDIO SIGNAL, AUDIO TRANSMISSION SYSTEM AND METHOD FOR DETERMINING CORRECTION VALUES |
摘要 |
An encoder for encoding an audio signal includes an analyzer for analyzing the audio signal and for determining analysis prediction coefficients from the audio signal. The encoder includes a converter for deriving converted prediction coefficients from the analysis prediction coefficients, a memory for storing a multitude of correction values and a calculator. The calculator includes a processor for processing the converted prediction coefficients to obtain spectral weighting factors. The calculator includes a combiner for combining the spectral weighting factors and the multitude of correction values to obtain corrected weighting factors. A quantizer of the calculator is configured for quantizing the converted prediction coefficients using the corrected weighting factors to obtain a quantized representation of the converted prediction coefficients. The encoder includes a bitstream former for forming an output signal based on the quantized representation of the converted prediction coefficients and based on the audio signal. |
申请公布号 |
EP3069338(A1) |
申请公布日期 |
2016.09.21 |
申请号 |
EP20140799376 |
申请日期 |
2014.11.06 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
SCHMIDT, KONSTANTIN;FUCHS, GUILLAUME;NEUSINGER, MATTHIAS;DIETZ, MARTIN |
分类号 |
G10L19/038 |
主分类号 |
G10L19/038 |
代理机构 |
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代理人 |
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地址 |
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