发明授权
US08811621B2 Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder
有权
参数立体声上混装置，参数立体声解码器，参数立体声下混装置，参数立体声编码器
- 专利标题： Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder
- 专利标题（中）： 参数立体声上混装置，参数立体声解码器，参数立体声下混装置，参数立体声编码器
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申请号： US12992317申请日： 2009-05-14
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公开(公告)号： US08811621B2公开(公告)日： 2014-08-19
- 发明人: Erik Gosuinus Petrus Schuijers
- 申请人： Erik Gosuinus Petrus Schuijers
- 申请人地址： NL Eindhoven
- 专利权人： Koninklijke Philips N.V.
- 当前专利权人： Koninklijke Philips N.V.
- 当前专利权人地址： NL Eindhoven
- 优先权： EP08156801 20080523
- 国际申请： PCT/IB2009/052009 WO 20090514
- 国际公布： WO2009/141775 WO 20091126
- 主分类号： H04R5/00
- IPC分类号： H04R5/00 ; H04S3/02
摘要：
A parametric stereo upmix apparatus generates left and right signals from a mono downmix signal based on spatial parameters. The parametric stereo upmix includes a predictor configured to predict a difference signal including a difference between the left and right signals based on the mono downmix signal scaled with a prediction coefficient. The prediction coefficient is derived from the spatial parameters. The parametric stereo upmix apparatus further includes an arithmetic unit configured to derive the left and right signals based on a sum and a difference of the mono downmix signal and the difference signal.
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