ELECTRIC ACOUSTIC SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an electric acoustic system capable of propagating a high-frequency sound with a frequency equal to or higher than that of an audible sound for human being in space to a listener with no substantial attenuation.

SOLUTION: The electric acoustic system radiates sound including audible sound and high-frequency sound having a frequency exceeding that of audible sound to a listener in a predetermined space. It includes an equalizer circuit 10 which compensates for attenuation of high-frequency sound in a free space at the position of a listener, and equalizes signal level of high-frequency sound so that the signal level of the audible sound is substantially equal to the signal level of the high-frequency sound.

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