Title:
INFORMATION GENERATION APPARATUS, INFORMATION GENERATION METHOD AND INFORMATION GENERATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2010/021035
Kind Code:
A1
Abstract:
To improve detection rate of types of musical instruments as compared with conventional methods by improving detection accuracy of sound producing positions within a musical composition. A sound-producing-position detection section (3) is provided, which uses a detection threshold value that is variable according to a speed (tempo) of a musical composition in order to detect a sound producing position of a musical instrument which plays the musical composition, by using a difference value of a residual power value obtained as a result of an LPC analysis over a musical composition data (Sin) which corresponds to the musical composition.
Inventors:
ISHIHARA HIROYUKI (JP)
YOSHIDA MINORU (JP)
YOSHIDA MINORU (JP)
Application Number:
PCT/JP2008/064832
Publication Date:
February 25, 2010
Filing Date:
August 20, 2008
Export Citation:
Assignee:
PIONEER CORP (JP)
ISHIHARA HIROYUKI (JP)
YOSHIDA MINORU (JP)
ISHIHARA HIROYUKI (JP)
YOSHIDA MINORU (JP)
International Classes:
G10L15/04; G10G3/04; G10H1/00; G10L25/51
Foreign References:
| JPH0934448A | 1997-02-07 | |||
| JP2004145154A | 2004-05-20 | |||
| JP2001142480A | 2001-05-25 |
Attorney, Agent or Firm:
ISHIKAWA, Yasuo et al. (JP)
Yasuo Ishikawa (JP)
Yasuo Ishikawa (JP)
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