| 摘要 |
An electromechanical converter has independent electric input sections. The output of an active noise reduction controller is inputted into an electric input section and the audio signal from an audio section is inputted into an electric input section. These are mechanically combined at a vibration section and the combined signal is radiated as a sound wave into the space. With such a structure, both the active noise reduction function and the audio reproduction function are realized without installing a large device in an existing audio reproduction apparatus.
|
