Korg PS-3300 - Page 15

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1-5 Amplitude Modulator (AM)
This raises and lowers the volume in a
cyclic fashion dependent on the output
signal of the modulation generator (EM-1).
This is how you get tremelo and other
effects. If you want tremelo, note that if
you turn down the MG-1 frequency knob
too far, the speed of the effect will be too
slow to be recognized by the average brain.
On the other hand, if you turn up the
MG-1 frequency too high, the pitch of the
sound will become inconspicuous in the
face of the metallic “ring modulator" ef-
fect that you produce.
cifically, if you turn the AM knob to
, modulation is 100%; if you turn it to
“10”, modulation is 200% and you've got a
real ring modulator on your hands.
Discover the difference between 100% and
200% modulation by turning the MG-1
waveform knob to the triangle () posi-
tion and the frequency knob to about “3”.
Then turn on the AM switch and slowly
turn up the AM sensitivity knob from “1”
to “10” (while playing something on the
keyboard).
You'll notice that the frequency (the num-
ber of cycles of volume variation per sec-
ond) doubles between “5” and “10”.