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Title:
SPEECH RECOGNITION APPARATUS AND SPEECH RECOGNITION METHOD
Document Type and Number:
WIPO Patent Application WO/2003/036617
Kind Code:
A1
Abstract:
A speech recognition apparatus and a speech recognition method capable of improving speech recognition accuracy. A distance calculator (47) calculates a distance between a user speaking and a microphone (21) and supplies the distance to a speech recognition unit (41B). The speech recognition unit (41B) contains acoustic model sets generated from speech data created by recording speeches spoken at a plurality of different distances. The speech recognition unit (41B) selects an acoustic model set which is nearest to the distance supplied from the distance calculator (47) and performs speech recognition by using the acoustic model set.

Inventors:
ASANO YASUHARU (JP)
Application Number:
PCT/JP2002/010868
Publication Date:
May 01, 2003
Filing Date:
October 21, 2002
Export Citation:
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Assignee:
SONY CORP (JP)
ASANO YASUHARU (JP)
International Classes:
G01B11/00; G01C3/06; G01S15/10; G10L15/00; G10L15/06; G10L15/20; G10L15/24; G10L21/0208; H04N7/18; G10L15/22; (IPC1-7): G10L15/20
Foreign References:
JPH06236196A1994-08-23
JPH0713591A1995-01-17
JPH1113507A1999-01-19
JPH0788791A1995-04-04
JPH02230896A1990-09-13
JPH06236196A1994-08-23
Other References:
See also references of EP 1441328A4
Attorney, Agent or Firm:
Inamoto, Yoshio (11-18 Nishi-Shinjuku 7-chome Shinjuku-ku, Tokyo, JP)
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