| 摘要 |
An electronic apparatus (100) includes an image projection unit that projects an image plane (14): an oscillation device that oscillates an ultrasonic wave (24) for sensors and an ultrasonic wave (26) for an audio reproduction toward the image plane (14): a control unit that controls the oscillation device: and an sound wave detection unit that is connected to the control unit. The sound wave detection unit detects the ultrasonic wave (24) for sensors, which is reflected from the image plane (14). The control unit adjusts a sound pressure of a sound to be reproduced based on detection strength detected by the sound wave detection unit. Accordingly, decreased power consumption in the electronic apparatus can be achieved. |
