Title:
SOUND SOURCE SEPARATION DEVICE AND SOUND SOURCE SEPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2007/083814
Kind Code:
A1
Abstract:
A sound source separation device includes: a plurality of audio input means to
which a plurality of mixed audio signals in which sound source signals from a plurality
of sound sources are superimposed are inputted; first sound source separation
means for separating and extracting a SIMO signal corresponding to at least one
sound source signal from a plurality of mixed sound signals by a sound source separation
process by the blind sound source separation method according to an independent
component analysis method; intermediate process execution means for obtaining
a plurality of signals subjected to the intermediate process by performing a
predetermined intermediate process including one of the selection process
and the combination process for each of the frequency components divided for
a plurality of particular signals as a part of the SIMO signal; and second sound
source separation means for obtaining a separated signal corresponding to the
sound source by performing a binary masking process on the signals subjected
to the intermediate process or a part of the signals subjected to the intermediate
process and the SIMO signal.
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Inventors:
HIEKATA, Takashi (())
稗方 孝之 (())
MORITA, Takashi (())
森田 孝司 (())
稗方 孝之 (())
MORITA, Takashi (())
森田 孝司 (())
Application Number:
JP2007/051009
Publication Date:
July 26, 2007
Filing Date:
January 23, 2007
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (10-26, Wakinohama-cho 2-chome Chuo-ku,, Kobe-sh, Hyogo85, Hyogo6518585, JP)
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, Hyogo6518585, JP)
NARA INSTITUTE of SCIENCE and TECHNOLOGY (8916-5, Takayama-cho Ikoma-sh, Nara 92, 6300192, JP)
国立大学法人 奈良先端科学技術大学院大学 (〒92 奈良県生駒市高山町８９１６－５ Nara, 6300192, JP)
HIEKATA, Takashi (())
稗方 孝之 (())
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, Hyogo6518585, JP)
NARA INSTITUTE of SCIENCE and TECHNOLOGY (8916-5, Takayama-cho Ikoma-sh, Nara 92, 6300192, JP)
国立大学法人 奈良先端科学技術大学院大学 (〒92 奈良県生駒市高山町８９１６－５ Nara, 6300192, JP)
HIEKATA, Takashi (())
稗方 孝之 (())
International Classes:
G10L21/02
Attorney, Agent or Firm:
OGURI, Shohei et al. (Eikoh Patent Office, 7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, 1050003, JP)
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