Getting the most from the filter involves using the resonance control as well as the
cut-off.
Hold a note again and turn the cut-off control to a position around the centre where
you can still hear the note but the filter is having some audible effect. Keep the note
held and turn the “Res.” control upwards. You should hear the tone get richer as the
resonance adds in new frequencies and then get very harsh towards the top of the
resonance control as the resonant effects in the filter start to dominate over the
original note.
Fiddle with the cut-off and resonance controls while holding a note to get a feeling
for the range of sounds and how they interact. The tonal quality added by the
resonance control depends on the setting of the cut-off. They higher the cut-off the
higher the resonant frequency. With the two controls you should get some great
retro sounds from the synth. I have played with these for hours.
When you find sounds you like try playing different notes and seeing how they
change. It’s well worth exploring the filter for deep bass sounds.
If you turn the resonance control up high (generally past half-way) the filter will start
to “self oscillate”. This means that there is so much resonance that the filter make a
noise even if there is no note sound going in. Set cut-off to the mid point and then
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