| 摘要 |
PROBLEM TO BE SOLVED: To allow for localization of a target sound source in one direction even with two microphones, while balancing the localization accuracy and cost of the target sound source.SOLUTION: A wall 4 is stood around two microphones 2a, 2b arranged with a space between one other. The wall 4 is formed only between the microphones 2a, 2b from one point P1, for two points P1, P2 line symmetrical with respect to an axis line L connecting the microphones 2a, 2b. This wall 4 has an S-shape, and the microphones 2a, 2b are arranged separately on the insides 4a, 4b of a recess. A target sound source is localized based on the difference of sound signals Sa, Sb outputted from the microphones 2a, 2b.SELECTED DRAWING: Figure 2 |
