Invention Grant
- Patent Title: Virtual rendering of object-based audio
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Application No.: US14422033Application Date: 2013-08-20
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Publication No.: US09622011B2Publication Date: 2017-04-11
- Inventor: Alan J. Seefeldt
- Applicant: DOLBY LABORATORIES LICENSING CORPORATION
- Applicant Address: US CA San Francisco
- Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee Address: US CA San Francisco
- International Application: PCT/US2013/055841 WO 20130820
- International Announcement: WO2014/035728 WO 20140306
- Main IPC: H04S7/00
- IPC: H04S7/00 ; H04R3/00 ; H04R5/02 ; H04S3/00

Abstract:
Embodiments are described for a system for virtual rendering of object based audio through binaural rendering of each object followed by panning of the resulting stereo binaural signal between a plurality of cross-talk cancelation circuits feeding a corresponding plurality of speaker pairs. In comparison to prior art virtual rendering utilizing a single pair of speakers, the described embodiments improve the spatial impression for both listeners inside and outside of the cross-talk canceller sweet spot. Also described is an improved equalization technique for a crosstalk canceller that is computed from both the crosstalk canceller filters and the binaural filters and applied to a monophonic audio signal being virtualized. The described techniques improve timbre for listeners outside of the sweet-spot as well as a smaller timbre shift when switching from standard rendering to virtual rendering.
Public/Granted literature
- US20150245157A1 Virtual Rendering of Object-Based Audio Public/Granted day:2015-08-27
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