Invention Grant
- Patent Title: Acoustic object extraction device and acoustic object extraction method
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Application No.: US17257413Application Date: 2019-09-06
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Publication No.: US11488573B2Publication Date: 2022-11-01
- Inventor: Rohith Mars , Srikanth Nagisetty , Chong Soon Lim , Hiroyuki Ehara , Akihisa Kawamura
- Applicant: Panasonic Intellectual Property Corporation of America
- Applicant Address: US CA Torrance
- Assignee: Panasonic Intellectual Property Corporation of America
- Current Assignee: Panasonic Intellectual Property Corporation of America
- Current Assignee Address: US CA Torrance
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPJP2018-180688 20180926
- International Application: PCT/JP2019/035099 WO 20190906
- International Announcement: WO2020/066542 WO 20200402
- Main IPC: G10K11/34
- IPC: G10K11/34 ; H04R1/40

Abstract:
In the acoustic object extraction device, beam forming processing units generate a first acoustic signal by beam forming in an arrival direction of a signal from an acoustic object with respect to a microphone array and generate a second acoustic signal by beam forming in an arrival direction of a signal from the acoustic object with respect to a microphone array, and a common component extraction unit extracts, on the basis of a similarity between the spectrum of the first acoustic signal and the spectrum of the second acoustic signal and from the first acoustic signal and the second acoustic signal, a signal containing a common component corresponding to the acoustic object. The common component extraction unit divides the spectrums of the first acoustic signal and the second acoustic signal into a plurality of frequency sections and calculates a similarity for each of the frequency sections.
Public/Granted literature
- US20210183356A1 ACOUSTIC OBJECT EXTRACTION DEVICE AND ACOUSTIC OBJECT EXTRACTION METHOD Public/Granted day:2021-06-17
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