Modulation Section - Korg SDD-3000 Owner's Manual

is a second INV switch in the Output section, which functions differently.
c) HIGH & LOW Filter
The HIGH & LOW filters adjust the frequency response of the Delayed signal. They do not affect the response of the
Direct signal. These filters are very useful in tailoring the sound to produce specific effects. These filters have a
moderate effect when FEEDBACK is O and a greater effect as the FEEDBACK setting is increased since Feedback
causes the signal to be 'recycled' through the delay me a number of times.
d) HOLD Button & Footswitch
The HOLD function provides the ability to infinitely repeat a short musical phrase, with no audio signal degradation
whatsoever. When the HOLD button Is depressed, the HOLD LED goes on and the 1 .023 seconds of material that
occurred just before the button was depressed is 'looped' internally and repeats until the HOLD button is depressed
again. While the HOLD function is in effect, the Delay time and Feedback settings are 'frozen' at the maximum setting
and may not be changed. However. the HIGH & LOW Filters, INV button, and all Modulation section functions may
still be changed as desired. Note that if they are changed, the effects program you return to when HOLD IS released will
also be changed. While HOLD is in operation, you may play new material over the repeating material. This new
material will not be repeated along with the other material, since the delay line input is 'locked' to its output in HOLD
mode. However, this does allow you to solo aver a short musical phrase.
An optional footswitch (Korg PS-i, etc.) may be connected to the rear panel HOLD jack for remote control of the
HOLD function. The HOLD button may still be used with the footswitch connected

4. Modulation Section

The Modulation Section is used to create the modulations or variations in Delay time which are essential to most effects
including flanging, chorus vibrato and doubling.
The Modulation Section includes the following:
a) WAVEFORM Switch
b) INTENSITY Control
c) FREOUENCY Control
d) DELAY MOD Control Input Jack (Rear Panel - ?)
a) WAVEFORM Switch
The WAVEFORM Switch determines which internal control signal is used to modulate or vary the Delay time from its
basic setting. There are four possibilities (the DELAY MOD input lets you use almost anything):
1) Triangle Waveform ( ?? )
This waveform is used for effects like chorus, vibrato and flanging.
2) Square Wave
This waveform is used for special effects, such as echo with pitch shift.
.