METHOD FOR REMOVING NOISE AND SYSTEM THEREFOR

摘要

PURPOSE: A method for removing a noise and a system therefor are provided to update a weighted coefficient in real time, thereby removing a noise by corresponding to peripheral changes in real time. CONSTITUTION: A voice separating unit(10) receives only peripheral noise for generating a virtual noise and generates a virtual voice by subtracting the virtual noise from a sound source inputted from the outside. A digital filter unit(20) filters the virtual noise by using a weighted coefficient for generating a filtered voice. A subtracting unit(30) calculates an error value by subtracting the virtual voice and the filtered voice. A weighted coefficient generating unit(40) updates the weighted coefficient by using the error value and the virtual voice to reduce the error value.