SOUND SOURCE POSITION DETECTION DEVICE, SOUND SOURCE POSITION DETECTION METHOD, SOUND SOURCE POSITION DETECTION PROGRAM, AND STORAGE MEDIUM

摘要

[Problem] To accurately detect the position of a sound source. [Solution] Signal measurement units 11 measure a signal outputted from a sound source as measurement signals. A reference signal acquisition unit 14 acquires a reference signal. A weighting processing unit 23 generates a weighted reference signal by weighting the reference signal measured by the reference signal acquisition unit 14. A time synchronization correction calculation unit 24 calculates a time synchronization correction value on the basis of the weighted reference signal. The time synchronization correction value is a correction value for synchronizing two measurement signals measured by the pair of signal measurement units 11. An arrival time difference calculation unit 26 calculates the arrival time difference on the basis of the time synchronization correction value. The arrival time difference is the difference in the time of arrival at the pair of signal measurement units 11 of the two measurement signals acquired by the pair of signal measurement units 11. A sound source position calculation unit 29 calculates the position of the sound source on the basis of the arrival time difference.