Title:
音源方向判定装置、音源方向判定方法、及び音源方向判定プログラム
Document Type and Number:
Japanese Patent JP7243105
Kind Code:
B2
Abstract:
A sound-source-direction determining apparatus includes a processor that updates a reference threshold such that the reference threshold increases as a sound pressure difference increases, the sound pressure difference being a difference between sound pressure of a certain frequency component of sound acquired by the first microphone and sound pressure of the certain frequency component of the sound acquired by the second microphone when the synthesized sound is output from the speaker and determines a direction in which a sound source of sound is located, based on comparison between the reference threshold and a sound pressure difference between sound pressure of a certain frequency component of the sound acquired by the first microphone and sound pressure of the certain frequency component of the sound acquired by the second microphone when the synthesized sound is not output from the speaker.
Inventors:
Chisato Shioda
Nobuyuki Washio
Suzuki Masanao
Nobuyuki Washio
Suzuki Masanao
Application Number:
JP2018181307A
Publication Date:
March 22, 2023
Filing Date:
September 27, 2018
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04R3/00; H04R1/02; H04R1/40
Domestic Patent References:
| JP2018081239A |
Attorney, Agent or Firm:
Patent Attorney Corporation Taiyo International Patent Office
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