MOBILE COMMUNICATION TERMINAL AND VOICE SIGNAL PROCESSING METHOD THEREOF

摘要

PURPOSE: A mobile communication terminal and a voice signal processing method thereof are provided to improve the quality of a voice call by preventing the disconnection of an acoustic signal which is transmitted to a callee side. CONSTITUTION: A mobile communication terminal includes an independent component analyzing unit(20), a noise level measuring unit(40) and a noise removal processing unit(30). The independent component analyzing unit analyzes each independent component of a mixed signal to divide it into an acoustic signal and a noise signal and output the divided result. The noise level measuring unit measures the level of the noise signal outputted from the independent component analyzing unit and then outputs noise level data. The noise removal processing unit determines a noise removal level based on the noise level data.