ABSYNTH 5 Reference Manual – 71
5.5.8 Notch
Band Elimination Filter (Notch)
Notch is a band rejection lter with resonance. Band Reject lters work in the opposite fashion
as bandpass lters: they only weaken frequencies within a particular frequency range, dened
by two cutoff frequencies on both sides (or by a middle frequency and a bandwidth). Higher
and lower frequencies can pass through unhindered.
Main Panel
The Notch Filter has the following parameters:
•
FrequencycontrolandFrequencymenu: The Frequency control allows you to set the
middle frequency in semitones (Trans) or in Hertz (Hz), upon the selection in the nearby
Frequency menu.
•
Resonancecontrol: This control (labeled Res) allows you to adjust the resonance of the
lter.
• B-widthcontrol: Sets the bandwidth of the lter around the middle frequency. Its values
is measured in octaves.
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