Audio output controller, audio output control method, and program

An audio output controller comprising

• multiple speaker units installed so as to face different directions, wherein
• measurement sound is output from at least one speaker unit of the multiple speaker units,
• a gain of the speaker unit is controlled on a basis of a reverberation characteristic when the measurement sound is measured by a microphone in a predetermined position,
• the reverberation characteristic includes a reverberation decay curve, and
• a gain is adjusted so as to minimize an error between a reverberation characteristic synthesized as a linear sum of impulse response measured by the respective measurement sounds from the multiple speaker units and a desired reverberation characteristic.

An audio output control method of an audio output controller including multiple speaker units installed so as to face different directions, the method comprising:

• outputting measurement sound from at least one speaker unit of the multiple speaker units;
• and
• controlling a gain of the speaker unit on a basis of a reverberation characteristic when the measurement sound is measured by a microphone in a predetermined position, wherein
• the reverberation characteristic includes an impulse response, and
• a gain is adjusted according to a distance from a linear sum of impulse response measured by respective measurement sounds from the multiple speaker units.

A non-transitory computer readable medium containing instructions that, when executed by a computer, control an audio output controller including multiple speaker units installed so as to face different directions to perform processing comprising:

• outputting measurement sound from at least one speaker unit of the multiple speaker units;
• and
• controlling a gain of the speaker unit on a basis of a reverberation characteristic when the measurement sound is measured by a microphone in a predetermined position, wherein
• the reverberation characteristic includes an impulse response, and
• a gain is adjusted according to a distance from a linear sum of impulse response measured by respective measurement sounds from the multiple speaker units.