Electronic device

摘要

Provided is an electronic device including a modulation unit (22) that modulates a sound signal to a modulation wave for a parametric speaker; an oscillator (12) to which the modulation wave is input; an equalizer (26) that corrects a frequency characteristic of a sound wave that is demodulated by the modulation wave; and a control unit (20) that selects a carrier frequency of the modulation wave and changes setting of the equalizer (26) on the basis of the selected carrier frequency. Thus, it is possible to provide the electronic device capable of correcting the frequency characteristic of the sound wave that is demodulated, for each carrier frequency of the modulation wave.

主权项

1. An electronic device comprising:
a modulation unit that modulates a sound signal to a modulation wave for a parametric speaker; an oscillator to which the modulation wave is input; an equalizer that corrects a frequency characteristic of a sound wave that is demodulated by the modulation wave; a control unit that selects a carrier frequency of the modulation wave and changes setting of the equalizer on the basis of the selected carrier frequency, an imaging unit that images a user and a region around the user; and a determination unit that determines the presence or absence of a person in the region imaged by the imaging unit, wherein the control unit selects the carrier frequency on the basis of the presence or absence of a person in the region.