SPEAKER DEVICE AND AUDIO SIGNAL PROCESSING METHOD

摘要

A speaker apparatus capable of distinctively localizing a sound source by employing localization based on a virtual sound source while taking advantages of the characteristic of a sound beam is provided. The speaker apparatus (2) includes: an input portion (11) to which audio signals of a plurality of channels are input; a plurality of speakers (21A to 21P, 33L and 33R); a directivity controlling portion (20) causing the plurality of speakers to output a plurality of sound beams by delaying the audio signals of the plurality of channels input to the input portion (11) and distributing the delayed signals to the plurality of speakers; and a localization adding portion (42) subjecting at least one of the audio signals of the plurality of channels input to the input portion (11) to filter processing based on a head-related transfer function and inputting the processed signal to the plurality of speakers.