| 摘要 |
The present invention relates to an acoustic transducer, and to an acoustic transducer having a sound pressure controlling function, capable of adjusting the sound pressure of an electric signal (acoustic signal) applied from an external source. The acoustic transducer having a sound pressure controlling function of the present invention comprises: a frame; a magnetic circuit installed inside the frame; a voice coil receiving an electric signal and vibrating by electromagnetic force interacting with the magnetic circuit; a vibration plate vibrating by the vibration of the voice coil to generate a sound; an input unit for acquiring a volume setting input of a user; and a sound pressure correction device processing an electric signal applied from an external source according to the volume setting input from the input unit and applying the processed electric signal to the voice coil. [Reference numerals] (710) Signal input unit; (720) Audio processor; (730) Signal output unit; (740) Power unit; (750) Setting unit; (800) Volume control unit |
