| 摘要 |
<p>The device has a converting unit (10) converting a set of signals into a set of frequency signals whose frequency value is a function of amplitude of the signals. A processing unit (20) processes the frequency signals to deliver another set of frequency signals at output (21) of the processing unit. A conversion unit (40) converts signals applied at input of the conversion unit into sound waves. A transmission unit (30) transmits the latter set of frequency signals between the output of the processing unit and the input of the conversion unit.</p> |
