Title:
MULTI-INPUT NOISE SUPPRESION DEVICE, MULTI-INPUT NOISE SUPPRESSION METHOD, PROGRAM, AND INTEGRATED CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2012/014451
Kind Code:
A1
Abstract:
A power spectrum estimation unit (200) estimates an estimated target sound power spectrum (Ps(ω)) on the basis of a power spectrum (P1(ω)) and a first computed value that is obtained by at least carrying out a computation that multiplies a power spectrum (P2(ω)) by a weighting coefficient (A2(ω)). A coefficient updater unit (300) updates the weighting coefficient (A2(ω)) and a weighting coefficient (A1(ω)) such that a second value, which is obtained by adding together at least two values that are obtained by multiplying the power spectrum (P2(ω)) and the estimated target sound power spectrum (Ps(ω)), respectively, by the weighting coefficient (A2(ω)) and the weighting coefficient (A1(ω)), approaches the power spectrum (P1(ω)).
Inventors:
KANAMORI, Takeo (())
金森 丈郎 (())
YUZURIHA, Shinichi (())
杠 慎一 (())
金森 丈郎 (())
YUZURIHA, Shinichi (())
杠 慎一 (())
Application Number:
JP2011/004219
Publication Date:
February 02, 2012
Filing Date:
July 26, 2011
Export Citation:
Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
KANAMORI, Takeo (())
金森 丈郎 (())
YUZURIHA, Shinichi (())
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
KANAMORI, Takeo (())
金森 丈郎 (())
YUZURIHA, Shinichi (())
International Classes:
G10L21/02; G10L15/20; H04R1/40; H04R3/00
Attorney, Agent or Firm:
NII, Hiromori (6F Tanaka Ito Pia Shin-Osaka Bldg.,3-10, Nishi Nakajima 5-chome, Yodogawa-ku, Osaka-cit, Osaka 11, 〒5320011, JP)
Claims: