User Manual

Table Of Contents
SUBTRACTOR SYNTHESIZER
(RECORD+REASON)
538
Ring Modulation
Ring Modulators basically multiply two audio signals together. The ring modulated output contains added frequencies
generated by the sum of, and the difference between, the frequencies of the two signals. In the Subtractor Ring Mod-
ulator, Osc 1 is multiplied with Osc 2 to produce sum and difference frequencies. Ring modulation can be used to
create complex and enharmonic, bell-like sounds.
1. Select an Init Patch by selecting “Initialize Patch” from the Edit menu.
Save any current settings you wish to keep before initializing.
2. Activate Ring Modulation with the button in the lower right corner of the oscillator section.
3. Activate Osc 2.
You need to activate Osc 2 before any ring modulation can happen.
4. Turn the Osc Mix knob fully to the right, so that only the sound of Osc 2 is heard.
Osc 2 provides the ring modulated output.
5. If you play a few notes while varying the frequency of either oscillator, by using the Semitone spin controls,
you can hear that the timbre changes dramatically.
If the oscillators are tuned to the same frequency, and no modulation is applied to either the Osc 1 or 2 frequency,
the Ring Modulator won’t do much. It is when the frequencies of Osc 1 and Osc 2
differ
, that you get the “true”
sound of ring modulation.