Invention Grant
- Patent Title: Audio source separation
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Application No.: US16091069Application Date: 2017-04-06
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Publication No.: US10410641B2Publication Date: 2019-09-10
- Inventor: Jun Wang , Lie Lu , Qingyuan Bin
- 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
- Priority: WOPCT/CN2016/078819 20160408; EP16170722 20160520
- International Application: PCT/US2017/026296 WO 20170406
- International Announcement: WO2017/176968 WO 20171012
- Main IPC: G10L19/008
- IPC: G10L19/008 ; G10L21/0232 ; G10L25/21 ; H04S7/00

Abstract:
The present document describes a method (100) for extracting audio sources (301) from audio channels (302). The method (100) includes updating (102) a Wiener filter matrix based on a mixing matrix from a source matrix and based on a power matrix of the audio sources (301). Furthermore, the method (100) includes updating (103) a cross-covariance matrix of the audio channels (302) and of the audio sources (301) and an auto-covariance matrix of the audio sources (301), based on the updated Wiener filter matrix and based on an auto-covariance matrix of the audio channels (302). In addition, the method (100) includes updating (104) the mixing matrix and the power matrix based on the updated cross-covariance matrix of the audio channels (302) and of the audio sources (301), and/or based on the updated auto-covariance matrix of the audio sources (301).
Public/Granted literature
- US20190122674A1 AUDIO SOURCE SEPARATION Public/Granted day:2019-04-25
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