Eclipse User Manual
Eclipse User Manual Page 38 of 58 Release 1.10.1
gram parameters to one of the generic parameters, you can alter all of the patched parame-
ters in concert simply by adjusting the generic parameter. Pretty handy.
! see page 39
Use
(MONITOR) to view the current value of the module selected under
(SOURCE). To the right, we see a value of 14.22%. If the module is
something very dynamic like
lfo#1 or follower#1, this (MONITOR) will
jump around quite a bit.
Scaling Modules and Selecting Modulation TYPE
Here’s the situation: let’s say you’ve selected lfo#1 to modulate a low pass
filter cutoff frequency
(freq). When the LFO is at the bottom of its cycle,
will the filter be at 0Hz? You wouldn’t hear anything. When the LFO is at
the top of its cycle, will the filter be at 20,000Hz? This might be what you
want, but maybe you only want the filter to cycle between 2000Hz and
4000Hz. How can we make that happen?
Here’s the solution: Scaling
. Before holding down the (FREQ) soft key,
enter a value of 2000Hz. We’ll call this value the “base” value below.
Now hold down the soft key and press <MODULATE> as discussed above.
The total range of possible modulation (
parameter_range) for a fre-
quency parameter is 0 ~ 20,000, but we only want a modulation of 4,000 –
2,000 = 2,000
. To scale, divide the amount of modulation you want by the
maximum available modulation and convert to a percentage. In this case,
(2,000/20,000)
*
100 = 10%. Enter 10.00% under (SCALE).
Great! Now we need to select the
(TYPE) of modulation. We have three
choices:
unipolar unipolar uses the base value (the value of the parameter before modulation) as a starting
point and adds the modulation value to it.
In the example above, the parameter value will vary between 2,000 and 4,000 (it starts at the
base value and modulates up).
bipolar bipolar uses the base value as a starting point and modulates above and below it.
In the example above the parameter value will vary between 1000 and 4,000 (centering on
the base value).
absolute absolute ignores the base value and passes the modulation right through, going from mini-
mum to maximum parameter for the swing of the modulation.
In the example above, the parameter value will vary between 20 and 2,000.
So, continuing our example, we would select
unipolar under (TYPE) to
get modulation between 2,000 and 4,000Hz.
Finally, select lfo#1 under (SOURCE).
For a good time (or to troubleshoot), watch your parameter vary on page 2
((FREQ) in this case). Neat!
