effective at stereo widening. Patch your mono signal to the Left input
and then take the Side output and run it through a phaser, EQ with
extreme cuts and boosts, or short delay (5-25ms) set up to create comb
filtering. Start with the Width control set to Stereo (
◀▶
) and then
increase if necessary until your signal sounds as though it’s spread
across the stereo field. You can use the Width CV to dynamically
modulate the stereo width, for example rhythmically with an LFO or
Envelope or by using an envelope follower on your input signal, so that
as the signal you’re inputting increases in level the width of the stereo
effect increases. You may find that this processing creates too much
width in the low end causing phase coherence issues, if you encounter
this then the HPF can be engaged to remove low frequencies from the
Side signal, fixing the problem.
One-spring wide mono to stereo reverb
This classic patch comes from the
ARP 2600, which creates a wide
reverb effect using Mid/Side
processing. Patch your mono
signal to the Left input and then
take the Mid out and patch to a
spring reverb. Return the 100%
wet reverb to the Side input and
monitor the Left and Right
outputs, you will now have a
centre-panned mono signal
surrounded by a wide stereo
reverb. Use the Width control to
adjust the wet/dry levels of the reverb to get the correct balance for
your tastes. A digital reverb can also be used for this patch but must be
set to 100% wet to work correctly. Because digital effects introduce a
small time delay any dry signal which comes though will recombine
with the original signal causing unwanted comb filtering.
