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Table Of Contents
76 Chapter 6 Filter
Waveform
The Waveform switches allow the selection of the waveform type used by LFO Shift and
LFO Fade. A selection of Triangle, falling and rising Sawtooth, Square up and down
around zero (bipolar), Square up from zero (unipolar), a random stepped waveform
(S&H), and a smoothed random waveform is available for each LFO.
Intensity
The Intensity sliders control the amount of Formant Shift and Fade A/B modulation by
the respective LFOs.
Rate
These knobs determine the speed of the modulation. Values to the left of the center
positions are synchronized with the sequencer’s tempo and include bar values, triplet
values and more. Values to the right of the center positions are non-synchronous and
displayed in Hertz.
Note: The Formant Shift and Fade LFO modulations are the keys to the most
extraordinary sounds of the EVOC 20 FB: Make sure to set up totally different or
complementary filter curves in both filter banks. Use rhythmic material like a drumloop
as an input signal. Set up tempo-synchronized modulations—with different Rates for
each LFO—for Formant Shift and Fade A/B. And then try a tempo-synchronized Tape
Delay after the EVOC 20 FB. You will end up with unique rhythms.