SPEECH ENHANCEMENT METHOD BASED ON BLIND SIGNAL CANCELLATION AND DEVICE USING THE METHOD

摘要

PURPOSE: A method and device for sound enhancement using silence signal removal through the sparsity property minimization can make a target speech signal is generated from a point source and estimate a target speech signal in an environment in which defuse noise exists. CONSTITUTION: A gain measurement part (230) receives a null forming signal from a null forming unit. The gain measurement part receives a beam forming signal from a beam forming part. The gain measurement part uses the provided null forming signal and the beam forming signal to generate a gain and provides it. A filter section (240) receives a beam forming signal from the beam forming part. The filter section receives the gain from the gain measurement part. The filter section uses the provided beam forming signal and the gain to estimate a target speech signal and provides it. [Reference numerals] (200) Signal input part; (210) Null forming part; (220) Beam forming part; (230) Gain measurement part; (240) Filter section