ACOUSTIC SIGNAL PROCESSING APPARATUS, MOVING IMAGE IMAGING APPARATUS AND CONTROL METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To generate a surround acoustic signal in which a specific acoustic signal (for example, the voice of a photographer) is arranged in an arbitrary position among collected acoustic signals.SOLUTION: An acoustic signal processing apparatus acquires the specific acoustic signal on the basis of at least one acoustic signal among the collected acoustic signals of a plurality of sound collection channels collected by a plurality of microphones; and cancels a signal corresponding to the specific acoustic signal from each acoustic signal of the sound collection channel which is used to generate the surround acoustic signal; and then generates the surround acoustic signal in such a manner that the sound source of the specific acoustic signal is arranged in the designated direction of a surround sound field, using the specific acoustic signal and the acoustic signal in which the signal corresponding to the specific acoustic signal is canceled.