User Manual

MALSTRÖM SYNTHESIZER
(RECORD+REASON)
605
• Comb + & Comb –
Comb filters are basically delays with very short delay times with adjustable feedback (in Reason controlled with
the Resonance knob). A comb filter causes resonating peaks at certain frequencies.
The difference between “+” and “–” is in the position of the peaks, in the spectrum. The main audible difference is
that the “–”-version causes a bass cut.
The Resonance parameter in both cases controls the shape and size of the peaks.
•AM
AM (Amplitude Modulation) is often referred to as Ring Modulation. A Ring Modulator works by multiplying two
signals together. In the case of the Malström, the filter produces a sine wave which is multiplied with the signal
from osc:A or osc:B. Resonance controls the mix between the clean and modulated signals. The Ring Modulated
output will then contain added frequencies which are generated by the sum of, and the difference between the
two signals. This can be used for creating complex, non-harmonic sounds.
Filter controls
Each filter contains the following four controls:
• Kbd (keyboard tracking)
By clicking this button so that it is lit, you activate keyboard tracking. If keyboard tracking is activated, the fre-
quency of the filter will change according to the notes you play on your keyboard. That is, if you play notes higher
up on the keyboard, the filter frequency will increase and vice versa. If keyboard tracking is deactivated, the filter
frequency will remain at a fixed value regardless of where on the keyboard you play.
Comb + Low Resonance Comb + High Resonance
Comb – Low Resonance Comb – High resonance