Invention Grant
US08880413B2 Binaural spatialization of compression-encoded sound data utilizing phase shift and delay applied to each subband
有权
使用相移和延迟的压缩编码声音数据的双耳空间化应用于每个子带
- Patent Title: Binaural spatialization of compression-encoded sound data utilizing phase shift and delay applied to each subband
- Patent Title (中): 使用相移和延迟的压缩编码声音数据的双耳空间化应用于每个子带
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Application No.: US12309074Application Date: 2007-06-19
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Publication No.: US08880413B2Publication Date: 2014-11-04
- Inventor: David Virette , Alexandre Guerin
- Applicant: David Virette , Alexandre Guerin
- Applicant Address: FR Paris
- Assignee: Orange
- Current Assignee: Orange
- Current Assignee Address: FR Paris
- Agency: Knobbe Martens Olson & Bear LLP
- Priority: FR0606212 20060707
- International Application: PCT/FR2007/051457 WO 20070619
- International Announcement: WO2008/003881 WO 20080110
- Main IPC: G10L19/00
- IPC: G10L19/00 ; H04R5/00 ; H04S3/00 ; H04S3/02 ; G10L19/008 ; H04S1/00
Abstract:
The invention is aimed at improving the quality of the filtering by transfer functions of HRTF type of signals (L, R) compressed in a transformed domain, for binaural playing on two channels (L-BIN, R-BIN), using a combination of HRTF filters (hL,L, hL,R) including a decorrelated version (HRTF-C*, HRTF-E*) of a few of these filters. For this purpose, a decorrelation cue is given with spatialization parameters (SPAT) accompanying the compressed signals (L, R). The Decorrelation comprises applying a different phase shift to each subband of the input signal combined with addition of an overall delay. The invention makes it possible to improve the broadening in the binaural rendition of audio scenes initially in a multi-channel format.
Public/Granted literature
- US20090292544A1 Binaural spatialization of compression-encoded sound data Public/Granted day:2009-11-26
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