MULTICHANNEL SOUND REPRODUCTION APPARATUS, AND MULTICHANNEL SOUND ADJUSTMENT METHOD

摘要

PROBLEM TO BE SOLVED: To automatically adjust characteristics of a reproduction sound without connecting a microphone to an apparatus or disposing the microphone at a predetermined position.

SOLUTION: Loudspeakers 110-115 are sequentially switched to the sound output mode by input/output switches 104-109, while the other non-selected loudspeakers are switched to the sound input mode. A loudspeaker in the sound output mode emits a test sound, and the other loudspeakers function as microphones to collect the test sound. The delay time and signal level of a reproduction sound signal are controlled based on a sound signal generated according to the collected test sound.

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