| 摘要 |
A device is arranged for producing a driving signal (VM) for a transducer (7), such as a loudspeaker. The driving signal has a frequency substantially equal to a resonance frequency of the transducer and an amplitude controlled by an external signal (VE). The device is arranged for automatically adjusting the frequency of the driving signal to the resonance frequency of the transducer, using a control path (8). The device may be part of a frequency adaptation device (1) for adapting a frequency range of an audio signal to the transducer (7). |
