F-em User Guide
•
Low/High Band Selection
: Selects the filter type of the first
and last band. A
Shelf
filter type looks like a normal or an
inverted “S” and it sounds and works similar to a low or high
pass filter with adjustable stop band attenuation or boost. A
Bell
filter looks like a normal or inverted bell and sounds and
works similar to a band pass or notch filter, again with variable
boost or attenuation and also with variable width. A
Cut
filter is
nearly similar to the Shelf filter but with a sharper slew rate.
•
Frequency (Freq)
: Controls the cutoff (shelf) or center (bell)
frequency of the band. Moving the dial to the left results in a
lower frequency of the band‘s cutoff or center frequency, to
the right increases it.
•
Quality (Q)
: Controls the quality or width of the band. When
using a bell type, moving the dial upwards results in a narrower
band, moving it downwards widens it. With the shelf type, it
emphasizes or attenuates the frequency band around the
cutoff frequency.
•
Gain
: Controls the gain boost or cut off the band. Clicking and
moving the dial upwards increases the gain of the band,
moving it downwards decreases it.
To edit the equalizer settings within the graphic representation, drag
the desired button (L, 1, 2, or H) and move it to the left or the right to
change the frequency. Move it up or down to change the gain. The
colored small buttons under the curve are for editing the quality of the
desired band.
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