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ericcoleridge
Joined: Jan 16, 2007
Posts: 402
Location: NYC
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 Posted: Thu May 15, 2008 10:34 am Post subject:
CGS Diatonic Convertor
Subject description: Anyone built it? |
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I have been reading and thinking about trying this circuit every time I place an order with Ken--but haven't ordered yet.
I'm wondering what peoples experience has been with it. It works a little like a quantizer, no? |
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sneakthief
Joined: Jul 24, 2006
Posts: 316
Location: Berlin
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| Posted: Fri May 16, 2008 12:11 am Post subject:
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it's output may be quantized to various notes, but i wouldn't call it a quantizer per se, since it doesn't quantize CV voltages. instead, the incoming gates choose the notes while the CV input act as note offsets.
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otherunicorn
Joined: May 11, 2008
Posts: 52
Location: Australia
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| Posted: Fri May 16, 2008 9:00 pm Post subject:
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The diatonic converter is an add-on module for the infinite melody, the purpose being to constrain the outputs of the latter to a diatonic (Major/Minor) scale. It can also be used on the Gated Comparator, or if you really want to, with assorted LFOs, though that really is pushing the idea a bit far. It is NOT a quantizer.
Ken
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The Alison Project
Joined: Jul 21, 2006
Posts: 167
Location: Canada
Audio files: 2
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| Posted: Sat May 17, 2008 12:51 am Post subject:
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I included the Diatonic Converter in my Infinite Melody as per Ken's wiring diagram on the page, definitely a great addition to the Infinite Melody if you have the room, if not make the room.
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sneakthief
Joined: Jul 24, 2006
Posts: 316
Location: Berlin
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| Posted: Sat May 17, 2008 2:13 am Post subject:
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as someone who leans more toward song-making, using it with the gated comparator seems more interesting to me because the results are less random.
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Scott Stites
Janitor
Joined: Dec 23, 2005
Posts: 2913
Location: Mount Hope, KS USA
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| Posted: Sat May 17, 2008 7:55 am Post subject:
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I'm thinking the Diatonic Converter would be a sublime way to get an additional voltage out of the Klee by hooking the gate bus into it.
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e-grad
Joined: Sep 12, 2008
Posts: 26
Location: Berlin
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| Posted: Sun Oct 12, 2008 3:08 am Post subject:
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The Diatonic Conv. is on mind, alas, my mind is not very good in electronics.
If I use the Diatonic Conv. as a stand alone module the CV to convert goes into the Root In or am i mistaken here?
I also like some feedback on one of my current idea for a rather huge highly normalized module:
1) Build a Gated Comp.
=> Hard wire it's 's 8 shifted gate outs to
2) one Diatonic Conv and
3) one Gate Sequencer CV Adapter
=> Hard wire 3) to
4) another Diatonic Conv.
To my understanding I should use the DC-Mixer inbetween 1) and 3). Is that right?
The idea is that I can use the original outs of the Gated Comp., Gate Seq. CV Adapt. and the Diatonic Conv. outs simultaneously.
What do you think about such a module? |
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guitarfool
Joined: Feb 26, 2007
Posts: 109
Location: Maryland
Audio files: 3
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| Posted: Sun Oct 12, 2008 10:50 am Post subject:
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| e-grad wrote: | | If I use the Diatonic Conv. as a stand alone module the CV to convert goes into the Root In or am i mistaken here? |
Nope. The Diatonic Converter is basically a D/A converter - so it wants 6 logic inputs (you don't have to use all 6, but using only one would be booooring). The "Root In" merely sums a CV input to the output. The closest thing to a standalone module would be to drive it with an A/D converter, which would give you a diatonic CV quantizer. I did this in another thread with the new Ray Wilson (MusicFromOuterSpace) Quantizer.
http://electro-music.com/forum/topic-28505-25.html
| e-grad wrote: | I also like some feedback on one of my current idea for a rather huge highly normalized module:
1) Build a Gated Comp.
=> Hard wire it's 's 8 shifted gate outs to
2) one Diatonic Conv and
3) one Gate Sequencer CV Adapter
=> Hard wire 3) to
4) another Diatonic Conv.
To my understanding I should use the DC-Mixer inbetween 1) and 3). Is that right?
The idea is that I can use the original outs of the Gated Comp., Gate Seq. CV Adapt. and the Diatonic Conv. outs simultaneously.
What do you think about such a module? |
Oooh, never thought of using the GS CV Adapter with the Gated Comparator! That would give you a kind of mini mutant Klee Sequencer  I think it would be worth doing this alone. 
You'd want some way of slowly stepping one bit through it (slow clock into the Gated Comp. with a single short pulse to the input?) for the purpose of tuning the 8 pots.
Item (4) is out, unless you wanted to just drive it off of different gate outputs from the first one. That would give you pseudo-random harmonic intervals with the output from (2). Might want to think long and hard about how to treat the Octave Select bits. If they were the same, the intervals would be smaller. Lots of options there.
And yes, you can use a DC Mixer to combine the outputs. |
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neandrewthal
Joined: May 11, 2007
Posts: 496
Location: Canada
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| Posted: Sun Oct 12, 2008 11:18 am Post subject:
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Our resident CGS guru is already on it
| andrewF wrote: |
thinking about it more, just patch the regular stage outputs of a gated comparator into a CGS DC mixer and it will work just as well!
Crikey! I'll just go and try it 
EDIT - yep, works great! |
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e-grad
Joined: Sep 12, 2008
Posts: 26
Location: Berlin
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| Posted: Tue Oct 14, 2008 3:33 am Post subject:
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guitarfool, Thanks a lot for your detailed reply. Highly appreciated.
| guitarfool wrote: | | And yes, you can use a DC Mixer to combine the outputs. |
The idea to combine a Gated Comp with an Gate CV Adapt. stems from some forum's contribution. IIRC somesone suggested to insert a mixer to prevent the Gate Seq. from overload since several gate outs of the Gated Comp. could be high at the same time. |
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