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Editing Effects: Chapter 7
QSR Reference Manual 17
Stereo Chorus. In the case of a Stereo Chorus, the signal is split into three parts with
a dry signal and a separate Detuning section for both left and right channels. When
the left channel is detuned sharp, the right is detuned flat, and vice versa. Once
again, this causes the effect to become more pronounced and dramatic.
LFO
DETUNE
DELAY
DRY
SIGNAL
RIGHT
CHORUSED
OUTPUT
FEEDBACK
DETUNE
FEEDBACK
DRY SIGNAL
DRY SIGNAL
LEFT
CHORUSED
OUTPUT
Mono Flange. First used in the 1960s, “Flanging” was achieved by the use of two
tape recorders that would record and play back the same program in
synchronization. By alternately slowing down one tape machine, and then the other,
different phase cancellations would occur. Since the slowing down of the tape
machines was done by hand pressure against the flanges of the tape supply reels, the
term “Flanging” came into being.
The effect of Flanging is achieved by splitting and slightly delaying one part of the
signal, then varying the time delay, again with an LFO. The delayed signal is then
mixed back with the original sound to produce the “swishing” or “tunneling” sound.
LFO
DELAY
DRY
SIGNAL
FLANGED
OUTPUT
FEEDBACK
DRY SIGNAL
Many variables are available, from varying the speed and depth of the LFO to
feeding back part of the signal to make the effect stronger. The Flanger’s feedback
can be either “Normal” or “Inverted”. Use the “Inverted” setting for a more dramatic
flange effect.