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On 18 Nov 2014, at 16:47, Nicholas Keller maq163x2@... 1 < Doepfer_a100@yahoogroups.com > wrote:
I see, I think.
So say you want to play "honky-tonk" from C1 to C2. If you do it slow, you was slow slew....and if you do it fast, you want faster slew. I think most "players" would consider using a foot pedal to control the slew rate as they played, and most "sequecerers" would use an aux CV to automate the change.
Might be best to look for someone to build you a digital module for this purpose if you really want a module to do the work, which I can totally understand.
I might know a guy if Dieter isn't interested in developing such a device
Nick
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On Nov 18, 2014, at 11:30 AM, "David Kellett davidkellettwoulf@... [Doepfer_a100]" < Doepfer_a100@yahoogroups.com > wrote:
Yes a voltage control slew would be part of it - but the voltage control for the slew would be based on how fast the pitch changes. So imagine a Theremin - it's output goes to a quantiser which quantises to steps but the rate of change - a slide generated by the VC Slew acting on the quantised pitches - is dependent on how fast you move your hand from one (approximate) note position to another. So I move my hand fast, very little slew, I move my hand slow a longer slew.
The generating gates is a separate issue for me. I would like to generate a gate signal when there is a step in a CV. So notes coming out of a quantiser produce a gate when there is a new note value. The A156 does this by itself but the uScale does not. The reason I'm using uScale(s) is the freedom of note selection - for instance a cluster from F to Bflat inclusive are "on" but notes B to E are off. With a random voltage source A149 the probability is you get more Fs and Bflats than the notes bounded by them as all B to E are quantised to F or Bflat but only the actual accurate notes in between are heard as themselves. Or pentatonic scales, or Kokin Joshi Scale (I have flutes in these odd scales!!)
I could put an A156 after the uScale to get the gates but wondered if there was another way. But I'm still not quite clear how I would create a CV based on the rate of change of another CV
David
Based on your description in this "clarifier", would a VC slew work Like the A-171
Otherwise, and after reading the other messages in this thread, I still don't understand what you're trying to do. I thought perhaps Florian had seen through your description and realized you want a F->V convertor, but in your initial post you said you wanted a CV based on a CV. Maybe it is not clear as you did not specify whether the first CV is stepped or smooth
Nick
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On Nov 18, 2014, at 4:07 AM, "David Kellett davidkellettwoulf@... [Doepfer_a100]" < Doepfer_a100@yahoogroups.com > wrote:
I bought the uScale rather than the A156 because of its flexibility interns of scales and non scales from chromatic notes - so don't really want an A156.
The CV could be - for instance a Theremin where the cv goes out to a quantiser then through a slew / Portamento then to oscillator. The rate of change of the theremin output would control the rate of slew. Hope that makes sense.
David
The closest to the second but would be the A-156 as when it quantizes it outputs a trigger.
I'm not sure about the first part; what is causing the changing rate of the cv
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On 18 Nov 2014, at 07:38, David Kellett davidkellettwoulf@... 1 < Doepfer_a100@yahoogroups.com > wrote:
Hi,
I'm wondering how to do two things.
1) To create a CV based (proportional to) on the rate of change of another CV
2) To create a gate when there is a step in a CV. This is particularly but not exclusively the output of a Intellijel uScale - so when there is a new pitch I would like to create a gate.
Hoping there is maybe a simple solution,
David
www.movingisliving.co.uk
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