Invention Grant
- Patent Title: Surround sound system
- Patent Title (中): 环绕声系统
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Application No.: US13817945Application Date: 2011-08-22
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Publication No.: US09319794B2Publication Date: 2016-04-19
- Inventor: Terence Betlehem , Mark Alistair Poletti
- Applicant: Terence Betlehem , Mark Alistair Poletti
- Applicant Address: NZ Lower Hutt
- Assignee: Industrial Research Limited
- Current Assignee: Industrial Research Limited
- Current Assignee Address: NZ Lower Hutt
- Agency: Dann, Dorfman, Herrell and Skillman, P.C.
- Priority: NZ587483 20100820
- International Application: PCT/NZ2011/000161 WO 20110822
- International Announcement: WO2012/023864 WO 20120223
- Main IPC: H04S3/00
- IPC: H04S3/00 ; H04R5/02 ; G10L19/008

Abstract:
A surround sound system for reproducing a spatial sound field in a sound control region within a room having at least one sound reflective surface. The system uses multiple steerable loudspeakers located about the sound control region, each loudspeaker having a plurality of different individual directional response channels being controlled by respective speaker input signals to generate sound waves emanating from the loudspeaker with a desired overall directional response. A control unit connected drives each of the loudspeakers and has pre-configured filters based on measured acoustic transfer functions for the room for filtering the input spatial audio signals to generate the speaker input signals for all the loudspeakers to generate sound waves with coordinated overall directional responses that combine together at the sound control region in the form of either direct sound or reflected sound from the reflective surface(s) of the room to reproduce the spatial sound field.
Public/Granted literature
- US20130223658A1 Surround Sound System Public/Granted day:2013-08-29
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