New CGS Simple Wave Folder
2004-02-16 by Scott Stites
Hi List!
Ken's new Simple Wave Folder may be a simple circuit, but it definitely
delivers the goods. Right now I've got it breadboarded - for the time being
I just added a voltage divider pot to sum CV offsets into the same point as
the audio input pot - it works pretty well that way, but it would be better
to mix in the DC with the audio, since if you set the pot as I have it all
the way to 0, you're grounding the input to the circuit.
The scope waveforms and the sound of the thing (to my ears) are of a
different breed than the Wave Multiplier, so just because you have a Wave
Multiplier, you still might want to check this out. For me, it's already
turned into a 'must have', and I'm a confirmed Wave Multiplier junkie.
I've got a sample of just a few of the many, many timbres I've run across in
the past day and a half, if you want to hear what the thing sounds like,
it's a long link, so look out for wrapping:
http://mypeoplepc.com/members/scottnoanh/sitebuildercontent/sitebuilderfiles
/newav.mp3
What amazes me about this and the Wave Multiplier is how much mileage one
can get from a single, humble triangle wave.
=====
The patch uses a single triangle wave into the input of the Wave Folder,
with the envelope generator providing the offset. This passes through the
2040 filter (with resonance set to 0), on through the VCA on out through the
PT2399 echo circuit. The same EG is controlling the VCF and the VCA. I
have an LFO going through a Motohiko Takeda exponential VCA into the
keyboard modulation input. The VCA is controlled with an AR EG for delayed
vibrato. For the different timbres, I only adjusted the audio and CV input
levels to the Wave Folder and the ADSR controls. I didn't alter any of the
filter settings.
=====
Thanks, Ken!!
Cheers,
Scott
Ken's new Simple Wave Folder may be a simple circuit, but it definitely
delivers the goods. Right now I've got it breadboarded - for the time being
I just added a voltage divider pot to sum CV offsets into the same point as
the audio input pot - it works pretty well that way, but it would be better
to mix in the DC with the audio, since if you set the pot as I have it all
the way to 0, you're grounding the input to the circuit.
The scope waveforms and the sound of the thing (to my ears) are of a
different breed than the Wave Multiplier, so just because you have a Wave
Multiplier, you still might want to check this out. For me, it's already
turned into a 'must have', and I'm a confirmed Wave Multiplier junkie.
I've got a sample of just a few of the many, many timbres I've run across in
the past day and a half, if you want to hear what the thing sounds like,
it's a long link, so look out for wrapping:
http://mypeoplepc.com/members/scottnoanh/sitebuildercontent/sitebuilderfiles
/newav.mp3
What amazes me about this and the Wave Multiplier is how much mileage one
can get from a single, humble triangle wave.
=====
The patch uses a single triangle wave into the input of the Wave Folder,
with the envelope generator providing the offset. This passes through the
2040 filter (with resonance set to 0), on through the VCA on out through the
PT2399 echo circuit. The same EG is controlling the VCF and the VCA. I
have an LFO going through a Motohiko Takeda exponential VCA into the
keyboard modulation input. The VCA is controlled with an AR EG for delayed
vibrato. For the different timbres, I only adjusted the audio and CV input
levels to the Wave Folder and the ADSR controls. I didn't alter any of the
filter settings.
=====
Thanks, Ken!!
Cheers,
Scott