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Title:
SIGNAL PROCESSOR, IMAGING APPARATUS AND SIGNAL PROCESSING PROGRAM
Document Type and Number:
Japanese Patent JP2012208406
Kind Code:
A
Abstract:

To provide a signal processor capable of appropriately reducing noise.

A signal processor comprises: a determination part that compares a frequency spectrum of an input sound signal with a flooring spectrum for each frequency bin and determines for each frequency bin whether or not to perform noise reduction processing to the input sound signal; and a noise reduction processing part that subtracts a frequency spectrum of noise for each frequency bin for the frequency spectrum of the input sound signal, based on the result determined by the determination part for each frequency bin.


Inventors:
YOSHIZUKA YOKO
OKAZAKI MITSUHIRO
OKANO KOSUKE
Application Number:
JP2011075457A
Publication Date:
October 25, 2012
Filing Date:
March 30, 2011
Export Citation:
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Assignee:
NIKON CORP
International Classes:
G10L21/0232
Domestic Patent References:
JP2005195955A2005-07-21
JP2006163231A2006-06-22
JP2000047699A2000-02-18
JP2005203981A2005-07-28
JP2004341339A2004-12-02
JP2010271411A2010-12-02
JP2005195955A2005-07-21
JP2006163231A2006-06-22
JP2000047699A2000-02-18
JP2005203981A2005-07-28
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Kazuya Nishi



 
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