Tiptop Z-DSP - Manual (Page 18)

Program Switching. - Continued
input the direction will be reversed.
To control program switching from an LFO or envelope
generator, use the VC-PRG input. A 0-5V voltage swing
on this input will switch the program under the same
terms as the TRIGGER input.
Note that switching time will vary from program to
program. For example, switching to a delay effect
takes longer than switching a filter effect. The delay
effect needs to have time to fill the data buffer before
passing the sound, and in some cases, this can take
more than a second to complete. Filters however take
a very short time to load and start working, since they
do not need to buffer any data.
Another common thing with switching is switching noise
(click). Switching noise is very much dependent on the
effect used and on the audio that is being processed.
The switching noise is more noticeable for example on
sine waves than with pulse waves because of the lack
of harmonic content.
Switching is a lot of fun and can add a rhythmic
dimension, for example switching between filters using
the Bat Filter card.