SIGNAL SOURCE SEPARATING METHOD APPLIED WITH REPETITIVE ECHO REMOVING METHOD AND RECORDING MEDIUM WHERE SAME METHOD IS RECORDED

摘要

PROBLEM TO BE SOLVED: To easily provide a reverse filter which includes a zero point. ;SOLUTION: Methods 'adaptive notch filter' and 'beam homing' which separate a sound source by using a 'microphone array' having multiple microphones 1,..., i,..., M are applied with a repetitive echo removing method' which optimizes an update coefficient by using a 'learning fixing method' as a method for finding approximately a reverse filter correcting the delay between microphones.;COPYRIGHT: (C)2000,JPO