Title:
集音装置
Document Type and Number:
Japanese Patent JP6918602
Kind Code:
B2
Abstract:
A sound collecting apparatus capable of effectively suppressing sounds other than a target sound is provided. The sound collecting apparatus includes a plurality of microphones. A total number of effective microphone pairs in which a distance between two microphones is smaller than a distance D is larger than a total number of the plurality of microphones. The distance D is represented by D = c/2f, where the frequency of the target sound acquired from each of the plurality of microphones is f and sound velocity is c. When an angle formed by a straight line connecting two microphones configuring an effective microphone pair and a predetermined straight line is ¸, the angles ¸ of all effective microphone pairs acquired from the plurality of microphones are different from each other.
Inventors:
Wataru Hayashida
Takeshi Nishikawa
Takero Kanamori
Takeshi Nishikawa
Takero Kanamori
Application Number:
JP2017124815A
Publication Date:
August 11, 2021
Filing Date:
June 27, 2017
Export Citation:
Assignee:
Panasonic Intellectual Property Corporation of America
International Classes:
H04R3/00; H04R1/40
Domestic Patent References:
| JP2012524505A |
Foreign References:
| US20100202628 | ||||
| US20130343549 |
Attorney, Agent or Firm:
Hiromori Arai
Eisaku Teratani
Shinichi Michisaka
Eisaku Teratani
Shinichi Michisaka