Invention Grant
- Patent Title: Method and system for producing a binaural impression using loudspeakers
- Patent Title (中): 使用扬声器产生双耳印象的方法和系统
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Application No.: US11798478Application Date: 2007-05-14
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Publication No.: US08270642B2Publication Date: 2012-09-18
- Inventor: Clemens Kuhn , Renato Pellegrini , Matthias Rosenthal , Etienne Corteel
- Applicant: Clemens Kuhn , Renato Pellegrini , Matthias Rosenthal , Etienne Corteel
- Applicant Address: CH Oberglatt
- Assignee: SonicEmotion AG
- Current Assignee: SonicEmotion AG
- Current Assignee Address: CH Oberglatt
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: EP06010125 20060517
- Main IPC: H04R5/02
- IPC: H04R5/02 ; H04R5/00

Abstract:
The invention relates to a method and device for reproducing sound from a first input audio signal (1) using a plurality of first loudspeakers (4) and producing a target binaural impression to a listener (6) within a listening area (55). In order to decrease the sensibility of the reproduction of sound to the environment acoustics and to simplify the adaptation of the reproduced sound to the listener's head orientation and position, it is proposed to first define a plurality of second virtual loudspeakers (49) positioned outside of the listening area (55), then to estimate a transfer function (17) between each second virtual loudspeaker (49) and the listener's ears (7a and 7b), to compute from the estimated transfer functions (17) transaural filters (2) that modify the said first input audio signal (1) to synthesize second audio input signals (30) and to synthesize input signals (3) from second audio input signals (30) for creating a synthesized wave field (34) by the said first loudspeakers (4) that appears, within the listening area (55), to be emitted by the plurality of second virtual loudspeakers (49) as a plurality of wave fronts (50) in order to reproduce the target binaural impression at the ears of the listener (7a and 7b).
Public/Granted literature
- US20080025534A1 Method and system for producing a binaural impression using loudspeakers Public/Granted day:2008-01-31
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