AUDIO SIGNAL PROCESSING DEVICE AND AUDIO SIGNAL PROCESSING METHOD

摘要

The purpose of the present invention is to provide an audio signal processing device that can effectively reduce the effects of noise by at least estimating the direction of the noise source. An audio signal processing device (100) is provided with: a receiving section (11) that receives an audio signal; an acoustic effect adjusting section (19) that generates a virtual audio signal by imparting an acoustic effect to the audio signal; a plurality of microphones (Mi) that respectively output collected audio signals representing sound that is sound collected in a listening environment; a sound source estimation section (112) that estimates a sound source direction for a source of sound in the listening environment on the basis of the collected audio signals; a noise extraction section (14) that extracts noise on the basis of the differences between the audio signal and collected audio signal; and a canceling sound generating section (16) that generates a noise canceling signal such that a sound that suppresses noise is reproduced in a virtual speaker closest to the sound source direction. The acoustic effect adjusting section outputs a superimposed audio signal, in which the virtual audio signal and noise canceling signal are superimposed, to a plurality of speakers (20).