Invention Grant
US09106196B2 Sound field spatial stabilizer with echo spectral coherence compensation
有权
具有回波光谱相干补偿的声场空间稳定器
- Patent Title: Sound field spatial stabilizer with echo spectral coherence compensation
- Patent Title (中): 具有回波光谱相干补偿的声场空间稳定器
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Application No.: US13922970Application Date: 2013-06-20
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Publication No.: US09106196B2Publication Date: 2015-08-11
- Inventor: Phillip Alan Hetherington
- Applicant: QNX Software Systems Limited
- Applicant Address: unknown Waterloo, Ontario
- Assignee: 2236008 Ontario Inc.
- Current Assignee: 2236008 Ontario Inc.
- Current Assignee Address: unknown Waterloo, Ontario
- Agency: Brinks Gilson & Lione
- Main IPC: H04B15/00
- IPC: H04B15/00 ; H03G3/20 ; H04R3/00 ; G10L21/0208 ; G10L21/0216

Abstract:
In a system and method for maintaining the spatial stability of a sound field a balance gain may be calculated for two or more microphone signals. The balance gain may be associated with a spatial image in the sound field. Signal values may be calculated for each of the microphone. The signal values may be signal estimates or signal gains calculated to improve a characteristic of the microphone signals. The differences between the signal values associated with each microphone signal may be limited although some difference between signal values may be allowable. One or more microphone signals are adjusted responsive to the two or more balance gains and the signal gains to maintain the spatial stability of the sound field. The adjustments of one or more microphone signals may include mixing of two or more microphone. The signal gains are applied to the two or more microphone signals.
Public/Granted literature
- US20140376744A1 SOUND FIELD SPATIAL STABILIZER WITH ECHO SPECTRAL COHERENCE COMPENSATION Public/Granted day:2014-12-25
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