you can set a minimum and maximum modulation speed or rate, and then you can set the acceleration as well, so when you step on the sustain pedal initially the speed is low and the longer you keep it down, the faster it gets.
The key to something like that is in using DimPro's Smoothing function. Unfortunately, the FX parameters don't include that option, and you'll notice that the Jazz 3 patch uses a chorus effect to simulate a "leslie" sound. The chorus is really always on, but at a slow speed, and the MIDI Matrix is set to change both the speed and the FX input level at the same time.
So, one quick workaround. Go to the main filter in DP, and find the BR 2p
filter. Drop the Cutoff knob to about halfway. Click on the "C
" button over the envelopes, and go to the LFO section. Status
: On & Depth
OK, that was prep. Now onto the MIDI Matrix. You can leave the two parameters that are in there if you want, but for now, double-click on the Source in each to temporarily disable those two slots. In a third slot, enter the following values: Source
: CC 64 (Sust) Destination
: Cutoff LFO Freq 1 Depth
: 5.5 Smooth
Now you have your sustain pedal triggering a speed increase from 1.0 Hz. (as default in the "C" LFO) to 5.5 Hz. The amount of time that it takes to go from slow to fast, and back again, is determined by the value set in the Smooth parameter. Adjust that to change the Leslie 'rotor inertia'. The B
eject filter and the LFO controlling it sets up the simulated phasing-type effect. One quick added MIDI Matrix line, a couple of quick Enables, and you have want you're after. BTW
: Many synths & hosts 'intercept' MIDI messages when they're used as for remote control, disabling the original function. Not so for sustain in Dimension; both are active. The originally intended sustain function can be toggled on and off in the Multisample configuration window. Look for Sust/Sust, and toggle the first of two settings there. HTH