AMPLIFIER BUILT-IN SPEAKER, LOUDSPEAKER, ACOUSTIC CONTROL DEVICE, AND ACOUSTIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an acoustic control device capable of facilitating adjustment of acoustic quality according to listeners' preferences and/or various applications.

SOLUTION: An acoustic control device includes: an FIR filter 11 that performs filtering corresponding to a preset filter coefficient for an input audio signal and outputs the signal; an operation input section 13 that specifies an amplitude characteristic and a phase characteristic to be implemented after changes for the purpose of changing the amplitude characteristic and the phase characteristic of the FIR filter 11; and an arithmetic control section 12 that sets, to the FIR filter 11, a filter coefficient corresponding to an amplitude characteristic and a phase characteristic designated by the operation input section 13.

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