| 摘要 |
PROBLEM TO BE SOLVED: To provide a system and method for conforming the position of an unknown microphone advantageous for deciding the position of a speaker for a large number of people, in order to concentrate the lighting on the speaker, to point a camera at the speaker, or to move the microphone closest to the speaker. SOLUTION: This system and method indicate nearly the same sounds emitted from a sound source where a first and a second sound signals are located at known position; decide the difference in the arrival times between the first sound signal generated by one microphone at known position and the second sound signal generated by the other microphone at unknown position; decide a distance between the sound source at known position and the microphone at unknown position, at least based on the difference of the arrival time decided; and decide the position of the microphone at unknowm position, based on the decided distance between the sound source at known position decided and the microphone at unknown position. Consenquently, the position of the microphone at unknown position can be decided by the positions of the other microphones. COPYRIGHT: (C)2006,JPO&NCIPI |
