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1. (WO2013118192) NOISE SUPPRESSION DEVICE

Pub. No.:    WO/2013/118192    International Application No.:    PCT/JP2012/000914
Publication Date: Fri Aug 16 01:59:59 CEST 2013 International Filing Date: Sat Feb 11 00:59:59 CET 2012
IPC: G10L 21/02
Applicants: Mitsubishi Electric Corporation
三菱電機株式会社
FURUTA, Satoru
古田 訓
Inventors: FURUTA, Satoru
古田 訓
Title: NOISE SUPPRESSION DEVICE
Abstract:
A probability density function control unit (7) obtains a probability density function in accordance with whether an input signal appears to be sound or appears to be noise, that is, a probability density function that is tailored to the distribution of a sound signal in a sound interval and a noise interval. A suppression amount calculation unit (8) uses the probability density function to calculate a spectrum suppression amount.