发明授权
EP1754222B1 ENERGY DEPENDENT QUANTIZATION FOR EFFICIENT CODING OF SPATIAL AUDIO PARAMETERS
有权
依赖能源的QUANTIZE FOR有效编码空间音频参数
- 专利标题： ENERGY DEPENDENT QUANTIZATION FOR EFFICIENT CODING OF SPATIAL AUDIO PARAMETERS
- 专利标题（中）： 依赖能源的QUANTIZE FOR有效编码空间音频参数
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申请号： EP06724214.9申请日： 2006-04-10
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公开(公告)号： EP1754222B1公开(公告)日： 2007-11-14
- 发明人: ROEDEN, Jonas , ENGDEGARD, Jonas , PURNHAGEN, Heiko , BREEBAART,Jeroen , SCHUIJERS, Erik , VAN DE PAR, Steven , HILPERT, Johannes , HERRE, Jürgen
- 申请人： Coding Technologies AB , Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Koninklijke Philips Electronics N.V.
- 申请人地址： Döbelnsgatan 64 113 52 Stockholm SE
- 专利权人： Coding Technologies AB,Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.,Koninklijke Philips Electronics N.V.
- 当前专利权人： Coding Technologies AB,Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.,Koninklijke Philips Electronics N.V.
- 当前专利权人地址： Döbelnsgatan 64 113 52 Stockholm SE
- 代理机构： Zinkler, Franz
- 优先权： US672943P 20050419
- 国际公布： WO2006111294 20061026
- 主分类号： G10L19/00
- IPC分类号： G10L19/00
摘要：
Parameters being a measure for a characteristic of a channel or of a pair of channels, wherein the parameter is a measure for a characteristic of the channel or of the pair of channels with respect to another channel of a multi-channel signal can be quantized more efficiently using a quantization rule that is generated based on a relation of an energy measure of the channel or the pair of channels and an energy measure of the multi-channel signal. With generation of the quantization rule taking into account a psycho acoustic approach, the size of an encoded representation of the multi-channel signal can be decreased by coarser quantization without significantly disturbing the perceptual quality of the multi-channel signal when reconstructed from the encoded representation.
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