AUDIO RECOGNITION DEVICE, AUDIO RECOGNITION METHOD, AUDIO RECOGNITION PROGRAM, DISTURBANCE REDUCING DEVICE, DISTURBANCE REDUCING METHOD, AND DISTURBANCE REDUCING PROGRAM

Title:

AUDIO RECOGNITION DEVICE, AUDIO RECOGNITION METHOD, AUDIO RECOGNITION PROGRAM, DISTURBANCE REDUCING DEVICE, DISTURBANCE REDUCING METHOD, AND DISTURBANCE REDUCING PROGRAM

Document Type and Number:

WIPO Patent Application WO/2007/080886

Kind Code:

A1

Abstract:

An audio recognition device includes: a microphone (12) for inputting an input audio including an utterance audio uttered by a user speaker and a disturbing audio uttered by a disturbing speaker other than the user speaker; a superposing amount decision unit (14) for deciding a noise superimposing amount for the input audio according to the utterance audio and the disturbing audio separately inputted as input audio; a noise superimposing unit (16) for superimposing the noise based on the noise superimposing amount on the input audio and outputting it as a noise superimposing audio; and an audio recognition unit (18) for audio-recognizing the noise superimposing audio.

Inventors:

IWASAWA TORU (JP)

Application Number:

PCT/JP2007/050157

Publication Date:

July 19, 2007

Filing Date:

January 10, 2007

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Assignee:

NEC CORP (JP)
IWASAWA TORU (JP)

International Classes:

G10L15/20; G10L15/00; G10L15/28; G10L15/30; G10L21/028

Foreign References:

JP2003241791A	2003-08-29
JPH07191696A	1995-07-28
JP2005250397A	2005-09-15
JPH05158494A	1993-06-25
JP2000010593A	2000-01-14
JPH10133688A	1998-05-22

Attorney, Agent or Firm:

HAYAMI, Shinji (2-17-16 Ebisu-Nishi, Shibuya-ku Tokyo 21, JP)

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