Title:
音声信号抽出方法および音声認識装置
Document Type and Number:
Japanese Patent JP4107192
Kind Code:
B2
Abstract:
To provide a method of extracting a speech signal from one input speech signal including a mixed signal such as noise.
A signal storage part 11 stores finite past values of one input signal. A plural-filter determination part 12 determines a plurality of filters through independent component analysis based upon the finite past values and uses the finite past values as inputs to obtain a plurality of filter outputs. A filter output selection part 13 selects a filter output corresponding to a speech signal component from a plurality of filter outputs. A speech signal composition part 14 composes a speech signal based upon the selected filter output.
COPYRIGHT: (C)2005,JPO&NCIPI
Inventors:
Shinichi Tamura
Application Number:
JP2003272569A
Publication Date:
June 25, 2008
Filing Date:
July 09, 2003
Export Citation:
Assignee:
株式会社デンソー
International Classes:
G10L15/20; G10L19/00; G10L21/0208; G10L21/0272; G10L21/028
Domestic Patent References:
| JP2001051689A | ||||
| JP2004069772A | ||||
| JP2006510069A |
Attorney, Agent or Firm:
Kazuyuki Yahagi