E-Mu Classic keys Operation Manual page 42

40
EFFECTS SECTION
STEREO FLANGER
A Minimum Delay control serves to tune
the flanger. In other words, it adjusts the
placement of the comb filter notches. The
initial delay is variable from 26 microsec-
onds to 6.5 milliseconds.
FXA:StereoFlange
Min Delay
A Low Frequency Oscillator (LFO) varies
this initial delay setting, changing the
frequency of the notches and adding
animation to the sound. The LFO Rate
controls the rate of change and the LFO
Depth controls how much the delay is
changed by the LFO. The LFO adds to the
initial delay time so that with LFO Depth
set to 255 the maximum delay time is 13
milliseconds.
FXA:StereoFlange
LFO Rate
The Feedback control sends some of the
delayed signal through the delay line
again. When positive feedback is used
100
(values +1 to +127), the comb filter
notches are deepened; when negative
feedback is used (values -1 to -127)
resonant peaks are formed between the
notches which increase with the amount
of negative feedback.
038
FXA:StereoFlange
LFO Depth 150
FXA:StereoFlange
Feedback -127