| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a two-output signal of a high quality storing sound space information of an objective sound. Ž<P>SOLUTION: A sound source separation emphasizing system has: receiving parts 111, 112 for tape-recording an acoustic signal generating from a plurality of sound sources at different two points; a filtering part 120 for forming a differential signal between receiving signals X<SB>R</SB>, X<SB>L</SB>at the different points so as not to contain a signal of an objective sound source after inputting the receiving signals X<SB>L</SB>, X<SB>R</SB>from the receiving parts 111, 112 to process the signal; a mask filter estimating part 130 for receiving an output signal of the filtering part 120 and the signals X<SB>L</SB>, X<SB>R</SB>from the receiving parts 111, 112 to estimate a time frequency filter coefficient as emphasizing the objective sound source; and a mask filter 140 for multiplying the signals X<SB>L</SB>, X<SB>R</SB>from the receiving parts by a signal G from the mask filter estimating part 130, thereby reducing an objective external sound to emphasize an objective sound holding spacial sound information. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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