parametric filter造句

Furthermore, one can readily modify the coefficients of a digital filter to make an adaptive filter or a user-controllable parametric filter.
The sound system operator can use equalization to change the frequency response of a microphone or loudspeakers system to increase GBF . The frequency which first begins ringing or feeding back is identified by the operator, and a notch filter or parametric filter is engaged to reduce the overall level of that frequency.
It's difficult to find parametric filter in a sentence. 用parametric filter造句挺难的