Title:
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM
Document Type and Number:
Japanese Patent JP2015118361
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technology that enables the separation of an unnecessary sound from a voice signal in a single channel and the removal of noise.SOLUTION: An information processing apparatus includes conversion means for obtaining a matrix in which a voice signal is converted into time frequency representation, breakdown means for breaking down the matrix into at least a basis matrix having a non-negative value and an activity matrix having a non-negative value, classification means for classifying activity vectors constituting the rows of the activity matrix by their characteristics, and separation means for separating the voice signal into a plurality of voice signals according to a result of the classification.
Inventors:
KITAZAWA KYOHEI
Application Number:
JP2014158122A
Publication Date:
June 25, 2015
Filing Date:
August 01, 2014
Export Citation:
Assignee:
CANON KK
International Classes:
G10L21/0308; G10L21/0264; G10L25/18
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
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