ESTIMATION OF THE WAVE-FORM OF A SOUND SOURCE BY USING AN ITERATIVE TECHNIQUE WITH MANY SENSORS

This paper proposes a method to estimate the waveform of sound sources . This is accomplished by using a microphone array where the microphon es are not situated close to the sound sources, The waveform is estima ted using the sound velocity and positions of the microphones and soun d sources as the only fixed parameters, The positions of the sound sou rces can be estimated in advance by using a conventional method such a s multiple signal classification method (MUSIC).An iteration method is introduced to reduce the effect of direct sounds and of significant i mage sources due to reflected noise and/or other sound sources, whose positions are known. Computer simulations and an experiment with louds peakers were conducted to demonstrate the effectiveness of our method.