Invention Grant
US09591425B2 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
- Patent Title: Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder
- Patent Title (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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Application No.: US14330498Application Date: 2014-07-14
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Publication No.: US09591425B2Publication Date: 2017-03-07
- Inventor: Erik Gosuinus Petrus Schuijers
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: NL Eindhoven
- Assignee: KONINKLIJKE PHILIPS N.V.
- Current Assignee: KONINKLIJKE PHILIPS N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP08156801 20080523
- Main IPC: H04R5/00
- IPC: H04R5/00 ; H04S5/00 ; G10L19/008 ; H04S3/02
Abstract:
A parametric stereo upmix method for generating a left signal and a right signal from a mono downmix signal based on spatial parameters includes predicting a difference signal comprising a difference between the left signal and the right signal based on the mono downmix signal scaled with a prediction coefficient. The prediction coefficient is derived from the spatial parameters. The method further includes deriving the left signal and the right signal based on a sum and a difference of the mono downmix signal and said difference signal.
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