Sound Parameters – Filter Types
93
Waldorf Q User’s Manual
Frequency
Level
Cutoff determines number of teeth
Resonance
Picture 32:
Comb – Filter Type
So, as with all other filter types, the Comb filter is controlled with two parameters:
•
Cutoff
controls the delay length.
•
Resonance
controls the feedback depth.
Now, what sound can a comb filter produce? Here are some examples:
The Comb filter as Chorus
This is the most basic way to use the Comb filter. A Chorus in fact is made of one or several Comb
filters so it is an easy task to set it up manually.
☞
To set up the Comb filter to produce a Chorus:
1.
Select the Comb+ filter type for the desired filter.
2.
Set
Cutoff
to a medium value.
3.
Set
Resonance
, Drive, Keytrack and any other modulation to 0.
4.
Select an
LFO
as
Cutoff Mod Source.
5.
Set
Cutoff Mod
to a medium positive or negative amount.
6.
Adjust the
LFO
to generate a slow triangle oscillation.
7.
Fine tune
Cutoff
,
Cutoff Mod
and
LFO Speed
until you get the desired Chorus effect.
You can also use both filters to create a Chorus and pan them to different stereo positions.
You can also pan the original i.e. low pass filtered signal to one stereo side and route 50% into
Filter 2 producing a Chorus effect that is panned to the other stereo side.
You might ask why you should use a Comb filter type to produce the Chorus instead of using the FX
section of the Q. Here are some reasons:
•
The FX sections are still free for other purposes. Also, in Multi Mode, the Comb filter
works no matter on which Instrument you use it.
•
The Comb filter works
per voice
rather than per Instrument. This means that each voice
has its own Chorus and therefore could generate a different Chorus effect. You can easily
