- 专利标题: Virtual rendering of object-based audio
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申请号: US14422033申请日: 2013-08-20
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公开(公告)号: US09622011B2公开(公告)日: 2017-04-11
- 发明人: Alan J. Seefeldt
- 申请人: DOLBY LABORATORIES LICENSING CORPORATION
- 申请人地址: US CA San Francisco
- 专利权人: Dolby Laboratories Licensing Corporation
- 当前专利权人: Dolby Laboratories Licensing Corporation
- 当前专利权人地址: US CA San Francisco
- 国际申请: PCT/US2013/055841 WO 20130820
- 国际公布: WO2014/035728 WO 20140306
- 主分类号: H04S7/00
- IPC分类号: H04S7/00 ; H04R3/00 ; H04R5/02 ; H04S3/00
摘要:
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.
公开/授权文献
- US20150245157A1 Virtual Rendering of Object-Based Audio 公开/授权日:2015-08-27
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