ACOUSTIC SIGNAL PROCESSING DEVICE, METHOD AND PROGRAM

To provide an acoustic signal processing device capable of accurately performing directional sound collection.SOLUTION: The acoustic signal processing device comprises: a direction estimation part 22 configured to estimate an arrival direction of a sound from signals collected by multiple microphones in a manner that a direction closer to the arrival direction which is estimated at a point of time when a predetermined specific sound is detected tends to be estimated as arrival direction; and a first directional sound collection part 23 configured to collect sounds in a manner that sounds from the arrival direction estimated by the direction estimation part 22 is emphasized.SELECTED DRAWING: Figure 6