Invention Grant
- Patent Title: Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder
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Application No.: US17324420Application Date: 2021-05-19
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Publication No.: US11871205B2Publication Date: 2024-01-09
- Inventor: Erik G. P. 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: EP 156801 2008.05.23
- The original application number of the division: US15411127 2017.01.20
- Main IPC: H04S5/00
- IPC: 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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