| 摘要 |
PROBLEM TO BE SOLVED: To provide an arrangement method for a speaker by which a sound image seems to be farther than an arranged position of the speaker. SOLUTION: Two speakers 8Ra, 8Rb are closely placed on a speaker mount face 17 and a directivity control section supplies a drive signal to the two speakers 8Ra, 8Rb to drive the two speakers 8Ra, 8Rb and to obtain unidirectional radiation characteristics in the arrangement method of the speakers. One speaker 8Rb of the two speakers 8Ra, 8Rb outputs an acoustic signal delayed by the directivity control section and the speaker 8Rb is placed closer to a listener side than to the other speaker 8Ra on a straight line Pr which is orthogonal to both center axes of the two speakers 8Ra, 8Rb on the speaker mound face 17. |
