| 摘要 |
<p>To improve the clarity of speech recorded using a contact microphone (10), it is proposed that preferably after passage through a pre-amplifier (11), the electric signal from the contact microphone (10), shall be subjected to a treatment for modifying its amplitude in a first signal processing unit (12) and to a treatment for modifying its spectral structure in a second signal processing unit (13).</p> |
