
Subtractor Synthesizer
107
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Bandpass (BP 12)
A bandpass filter cuts both high and low frequencies, while midrange fre-
quencies are not affected. Each slope in this filter type has a 12 dB/Octave
roll-off.
The darker curve illustrates the roll-off curve of the Bandpass Filter. The lighter curve in
the middle represents the filter characteristic when the Resonance parameter is raised.
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Highpass (HP12)
A highpass filter is the opposite of a lowpass filter, cutting out the lower fre-
quencies and letting the high frequencies pass. The HP filter slope has a 12
dB/Octave roll-off.
The darker curve illustrates the roll-off curve of the Highpass Filter. The lighter curve in
the middle represents the filter characteristic when the Resonance parameter is raised.
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