Invention Grant
- Patent Title: Spatial multiplexing in a soundfield teleconferencing system
- Patent Title (中): 声场电话会议系统中的空间复用
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Application No.: US14431247Application Date: 2013-09-25
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Publication No.: US09565314B2Publication Date: 2017-02-07
- Inventor: Richard J. Cartwright , David S. McGrath , Glenn N. Dickins
- 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/US2013/061643 WO 20130925
- International Announcement: WO2014/052429 WO 20140403
- Main IPC: H04M3/56
- IPC: H04M3/56 ; H04R5/04 ; H04S7/00

Abstract:
The present document relates to audio conference systems. In particular, the present document relates to the mapping of soundfields within an audio conference system. A conference multiplexer (110, 175, 210, 400) configured to place a first input soundfield signal (402) originating from a first soundfield endpoint (120, 170) within a 2D or 3D conference scene (300) to be rendered to a listener (301) is described. The first input soundfield signal (402) is indicative of a soundfield captured by the first soundfield endpoint (120, 170). The conference multiplexer (110, 175, 210, 400) is configured to set up the conference scene (300) comprising a plurality of talker locations (321, 322, 332, 331) at different angles (323, 333) with respect to the listener (301); provide a first sector (325); wherein the first sector (325) has a first angular width (324); wherein the first angular width (324) is greater than zero; and transform the first input soundfield signal (402) into a first output soundfield signal (403), such that for the listener (301) the first output soundfield signal (403) appears to be emanating from one or more virtual talker locations (321, 322) within the first sector (325).
Public/Granted literature
- US20150244869A1 Spatial Multiplexing in a Soundfield Teleconferencing System Public/Granted day:2015-08-27
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