SOUND SOURCE SEPARATION METHOD AND SYSTEM FOR USING BEAMFORMING

摘要

PURPOSE: A sound source separation method and a system thereof are provided to separate each voice when two or more voices are inputted at the same time, thereby improving performance of the voice communicator/recognizer. CONSTITUTION: A windowing processing unit covers an integrated voice signal inputted by at least one bean formed microphone array with a window. A DFT(Discrete Fourier Transform) transforming unit(200) changes the signal in which the window is covered into a frequency axis. A TF(Transfer Function) estimating unit(300) estimates a TF with a feature value of two or more different individual voice signal from the signal in which the window is covered. A noise estimating unit(400) removes noises of the individual voice signals from the TF. A voice signal detecting unit(600) extracts the individual voice signals from the noise removed voice signals.