发明授权
US08462970B2 Audio encoding and decoding method and associated audio encoder, audio decoder and computer programs
有权
音频编码和解码方法及相关音频编码器，音频解码器和计算机程序
- 专利标题： Audio encoding and decoding method and associated audio encoder, audio decoder and computer programs
- 专利标题（中）： 音频编码和解码方法及相关音频编码器，音频解码器和计算机程序
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申请号： US12599519申请日： 2008-04-16
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公开(公告)号： US08462970B2公开(公告)日： 2013-06-11
- 发明人: Adil Mouhssine , Abdellatif Benjelloun Touimi
- 申请人： Adil Mouhssine , Abdellatif Benjelloun Touimi
- 申请人地址： FR Paris
- 专利权人： France Telecom
- 当前专利权人： France Telecom
- 当前专利权人地址： FR Paris
- 代理机构： Drinker Biddle & Reath LLP
- 优先权： FR0703347 20070510
- 国际申请： PCT/FR2008/050672 WO 20080416
- 国际公布： WO2008/145894 WO 20081204
- 主分类号： H04R25/00
- IPC分类号： H04R25/00 ; H04B15/00
摘要：
The invention relates to a method for ordering spectral parameters of ambisonic components to be encoded (A1, . . . , AQ) originating from an audio scene comprising N signals (Sii=1 to N), in which N>1, comprising the following steps: calculation of the respective influence of at least some spectral parameters, taken from a set of spectral parameters to be ordered, on an angle vector defined as a function of energy and velocity vectors associated with Gerzon's criteria and calculated as a function of a reverse ambisonic transformation in relation to said quantified ambisonic components; and allocation of a precedence order to at least one spectral parameter as a function of the influence calculated for said spectral parameter compared to the other calculated influences.
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