| 摘要 |
PROBLEM TO BE SOLVED: To properly perform processing for separating a signal corresponding to a speaker's voice even if a mixed signal is inputted through respective microphones before an inverse matrix is computed for the first time. SOLUTION: A sound source separating device, equipped with an inverse matrix arithmetic means of computing inverse matrixes of spatial transfer function matrixes from a sound source to the respective microphones in a specified computing method and a sound source separating means of separating the signal corresponding to the speaker's voice from the mixed signal inputted through the respective microphones, is equipped with a storage means of storing correspondence relation between a specified state and inverse matrixes which should be used in the specified state, a detecting means of detecting a current state, and an acquiring means of acquiring an inverse matrix corresponding to the current state detected by the detecting means from the storage means, and the sound source separating means separates the signal corresponding to the speaker's voice from the mixed signal inputted through the respective microphones by using the inverse matrix acquired by the acquiring means before the inverse matrix is computed for the first time. COPYRIGHT: (C)2005,JPO&NCIPI |
