Title:
AUDIO SIGNAL PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/106734
Kind Code:
A1
Abstract:
An audio signal processing device (100) is provided with a power acquisition unit (110), a probability distribution acquisition unit (120), and a coincidence level determination unit (130). The power acquisition unit (110) receives an inputted audio signal, and based on said received audio signal, acquires the power, which represents the magnitude of the sound represented by the audio signal. The probability distribution acquisition unit (120) acquires a probability distribution which has the magnitude of the power acquired by the power acquisition unit (110) as a random variable. When a predetermined benchmark audio signal is inputted into the power acquisition unit (110), the coincidence level determination unit (130) determines whether or not the coincidence level representing the degree of coincidence between the power acquired by the power level coincidence unit (110) and a predetermined benchmark power exceeds a predetermined benchmark coincidence level, based on the probability distribution acquired by the probability distribution acquisition unit (120).
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Inventors:
EMORI TADASHI (JP)
Application Number:
PCT/JP2010/001016
Publication Date:
September 23, 2010
Filing Date:
February 18, 2010
Export Citation:
Assignee:
NEC CORP (JP)
EMORI TADASHI (JP)
EMORI TADASHI (JP)
International Classes:
H04R3/00; H04R29/00
Domestic Patent References:
| WO2007130766A2 | 2007-11-15 |
Foreign References:
| JP2002159086A | 2002-05-31 | |||
| JP2002149190A | 2002-05-24 |
Attorney, Agent or Firm:
BABA, Motohiro et al. (JP)
Motohiro Baba (JP)
Motohiro Baba (JP)
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