Title:
マイクロホンアレイを用いた話者距離検出装置及び方法並びに当該装置を用いた音声入出力装置
Document Type and Number:
Japanese Patent JP4247002
Kind Code:
B2
Abstract:
There are provided a speaker distance detection apparatus and method using a microphone array, capable of exactly detecting the distance between a speaker and even a small terminal such as a mobile telephone, and a speech input/output apparatus using the method. The speaker distance detection apparatus uses a microphone array composed of a plurality of microphones, previously determines a reference microphone to be a reference among a plurality of microphones, detects differences between a signal level of the reference microphone and signal levels of the other microphones, based on correlations between signals in the respective microphones, and determines the distance from the microphone array to the speaker based on the detected signal level difference.
Inventors:
Naoji Matsuo
Hitoshi Iwamida
Hitoshi Iwamida
Application Number:
JP2003014000A
Publication Date:
April 02, 2009
Filing Date:
January 22, 2003
Export Citation:
Assignee:
富士通株式会社
International Classes:
G01S11/14; G10L15/00; G10L15/28; G10L21/028; G10L21/0308; H04M1/00; H04M1/60; H04R1/40; H04R3/00; H04W88/02; G01S3/808
Domestic Patent References:
| JP61028294A | ||||
| JP2000287292A |
Attorney, Agent or Firm:
Ikeuchi, Sato & Partners
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