发明授权
US08054981B2 Energy dependent quantization for efficient coding of spatial audio parameters
有权
能量相关量化用于空间音频参数的有效编码
- 专利标题： Energy dependent quantization for efficient coding of spatial audio parameters
- 专利标题（中）： 能量相关量化用于空间音频参数的有效编码
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申请号： US11406631申请日： 2006-04-19
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公开(公告)号： US08054981B2公开(公告)日： 2011-11-08
- 发明人: Jonas Röden , Jonas Engdegard , Heiko Purnhagen , Jeroen Breebaart , Erik Schuijers , Steven van de Par , Johannes Hilpert , Jürgen Herre
- 申请人： Jonas Röden , Jonas Engdegard , Heiko Purnhagen , Jeroen Breebaart , Erik Schuijers , Steven van de Par , Johannes Hilpert , Jürgen Herre
- 申请人地址： SE Stockholm NL Eindhoven DE Munich
- 专利权人： Coding Technologies AB,Koninklijke Philips Electronics N.V.,Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forshung E.V.
- 当前专利权人： Coding Technologies AB,Koninklijke Philips Electronics N.V.,Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forshung E.V.
- 当前专利权人地址： SE Stockholm NL Eindhoven DE Munich
- 代理商 Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- 主分类号： H04R5/00
- IPC分类号： H04R5/00
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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