Extron electronic DMP 64 manual Filter FILT, Insert Filter Menu

Filter (FILT)

Each filter block allows a total of five filters. The first filter is inserted from a processor list that appears when the block is double‑clicked or from a context window that shows a processor list when the block is right‑clicked.

Figure 22. Insert Filter Menu

Once inserted, double‑click the processor block to change parameters of the filter. After the first filter is inserted, up to four additional filters can be added to the filter block using the dialog box. Select the desired filters from the following list using the drop‑down boxes:

•High pass filter — A high pass filter passes a band of frequencies extending from a specified cutoff frequency (greater than zero) up toward the high end of the frequency spectrum. All frequencies above the specified cutoff frequency are allowed to pass, while all frequencies below are attenuated.

The default cutoff is 100 Hz.

•Low pass filter — A low pass filter passes a band of frequencies extending from a specified cutoff frequency (less than infinite) towards the lower end of the frequency spectrum. All frequencies below the specified frequency are allowed to pass, while all frequencies above are attenuated.

The default cutoff is 10 kHz.

•Bass and treble filters — Also known as shelving or tone controls, the separate bass and treble filters provide the ability to cut or boost gain linearly above or below a specific frequency, with the end-band shape giving the visual appearance of a shelf. The bass default frequency is 100 Hz and the treble default is 8 kHz.

•Parametric equalizer filter — The parametric filter is a frequency equalizer that offers control of all parameters, including amplitude (the amount of gain/boost or gain reduction/cut applied), center frequency (frequency), and range of affected frequencies (Q) around the center frequency.

DMP 64 • Software Control 31