Operation Manual

6.82 Stereo Chorus 141
left variable delay line+
right variable delay line+
Output Left Signal
Input Signal
mix
left feedback
right feedback
+
+
cross feedback
mix
Output Right Signal
Figure 85: Stereo Chorus module.
Tuning
The length of the delay lines associated with the left and right channel, are adjusted with the delay
left and delay right knob respectively. The length of the two lines are displayed, in milliseconds, in
the counter next to these knobs. The feedback knobs located on the right of the delay knobs are used
to fix the amount of “wet” signal re-injected into the left and right delay lines. The length of these
delay lines can be modulated by using the third input of the module, the amount of modulation
depending on the adjustment of the depth knob. In the left position, there is no modulation and
the delay lines remain fixed while in the right position, with a modulation signal varying between
[-1,1] Volt, the delay lines varies between 0 and twice the value set with the delay knobs. Note that
the modulation on the left and right channels can be set out of phase by pressing the inv button on
the right channel. The feedback knob located on the right of the depth knob is used to adjust the
amount of cross-feedback between the two channels. Finally, the mix knob determines the amount
of “dry” and “wet” signal sent to the output. When this knob is adjusted in the left position, only
“dry” signal is sent to the output, in its center position (green LED On), there is an equal amount
of “dry” and “wet” signal in the output and in the right position, only “wet” signal is sent to the
output.