Soundtoys Tremolator - Manual (Page 29)

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Rate Mod
The Rate Mod knob allows you to dynamically increase (or decrease) the rate of the
LFO or Rhythm based on the level of the input signal, and the Threshold setting as
discussed above. The modulation is either added or subtracted from the basic Rate
as set on the front panel. The setting of this knob determines the maximum amount
of rate modulation that can occur
The Rate Mod knob is bi-polar; when set straight up it is at the ‘zero’ position. As
you turn the knob clockwise the rate will increase based on the setting of the knob
and/or the numbers entered into the LED display below. As you turn the knob
counter clockwise the rate will decrease based on the knob setting and/or the
numbers in the LED display below the knob.
The Rate Mod scale is in octaves and is based on standard frequency scale; a setting
of ‘1.00’ will provide a doubling of the speed (x2), a setting of ‘2.00’ will double the
rate again (x4) and so forth. So a setting of ‘4.00’ is equal to a four-octave increase
in the rate (x16).
The same approach is used as you turn the knob counter clockwise, except that the
rate is decreased (slowed down) as opposed to sped up. One thing that is important
to know is that it is possible to increase and modulate the rate to very high speeds
(above what is possible with a setting of the fastest BPM + 1/32 note setting) and up
into the audio range. This allows you to get ‘ring mod’ type effects that can be very,
very cool. Again, keep in mind that the input signal must pass the Threshold setting
to become active and how far above the Threshold setting the signal goes deter-
mines how much modulation will be added etc.
It is also important to note that you can still modulate the Rate even if Tremolator is
synced to an incoming midi clock. What happens is the rate is driven out of sync and
sped up or down but once the mod level drops back to it’s ‘normal’ or base level
Tremolator will grab hold again and dance in sync with the incoming midi clock.
Cool, no?