Title:
SIGNAL PROCESSING METHOD, INFORMATION PROCESSOR, AND SIGNAL PROCESSING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2011/055834
Kind Code:
A1
Abstract:
Provided is a signal processing technology capable of suppressing various noises including unknown noises without storing information relating to a large number of noises in advance. In order to suppress noises intermingled in a degraded signal, noise information relating to the noises in the degraded signal is corrected using correction information first. Corrected noise information is determined by the correction. The noises in the degraded signal are suppressed using the determined corrected noise information. The correction information is updated on the basis of noise suppression results of the noises suppressed as above.
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Inventors:
SUGIYAMA AKIHIKO (JP)
Application Number:
PCT/JP2010/069875
Publication Date:
May 12, 2011
Filing Date:
November 02, 2010
Export Citation:
Assignee:
NEC CORP (JP)
SUGIYAMA AKIHIKO (JP)
SUGIYAMA AKIHIKO (JP)
International Classes:
G10L21/0208; G10L21/0232; G10L21/0264
Domestic Patent References:
| WO2007058121A1 | 2007-05-24 |
Foreign References:
| JP2006287387A | 2006-10-19 | |||
| JP2003216180A | 2003-07-30 | |||
| JPH0548390A | 1993-02-26 | |||
| JP2001215990A | 2001-08-10 | |||
| JP2009255420A | 2009-11-05 | |||
| JP4282227B2 | 2009-06-17 | |||
| JPH08221092A | 1996-08-30 | |||
| JP2006279185A | 2006-10-12 | |||
| JP2008203879A | 2008-09-04 |
Other References:
SUGIYAMA, A.: "A robust NLMS algorithm with a novel noise modeling based on stationary/ nonstationary noise decomposition", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 2009. ICASSP 2009. IEEE INTERNATIONAL CONFERENCE ON, 26 May 2009 (2009-05-26), pages 201 - 204, XP008154128
M. BEROUTI; R. SCHWARTZ; J. MAKHOUL: "Enhancement of speech corrupted by acoustic noise", PROCEEDINGS OF ICASSP'79, April 1979 (1979-04-01), pages 208 - 211, XP001079151
O. HOSHUYAMA; A. SUGIYAMA: "Robust Adaptive Beamformingll", January 2001, SPRINGER, article "Microphone Arrays", pages: 87 - 1109
See also references of EP 2498253A4
M. BEROUTI; R. SCHWARTZ; J. MAKHOUL: "Enhancement of speech corrupted by acoustic noise", PROCEEDINGS OF ICASSP'79, April 1979 (1979-04-01), pages 208 - 211, XP001079151
O. HOSHUYAMA; A. SUGIYAMA: "Robust Adaptive Beamformingll", January 2001, SPRINGER, article "Microphone Arrays", pages: 87 - 1109
See also references of EP 2498253A4
Attorney, Agent or Firm:
ASAI, TOSHIO (JP)
Toshio Asai (JP)
Toshio Asai (JP)
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