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Re: AW: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-23 by Florian Anwander

Hi

It is basically possible, with a VC pitchshifter. The A-187 unfortunately does not allow to suppress the original signal, so it won't work. But I am sure there are other pitchshifters in the eurorack world, which work with FX-only. My trusted old MXR Pitchshifter has a CV input, but it works not V/Oct; nevertheless you can do nice things with it.

Florian

On 22.09.17 23:03 , a11@live.nl [Doepfer_a100] wrote:

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Re: AW: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-23 by a11@live.nl

Thank you for your reply, Florian.

The reason I ask this is, that sometimes when you VC tune/pitch-V/Oct a VCO, the sound changes, so you can not play a decent melody.

You can notice it here in this video - not so clearly - from 6.16 and at 7.06 minute.
If the signal was distorted more and more , the changes in sound would be also more and more.

It's a pity, because the OptoFet filter has some very nice [sweetspot] distorted sounds.

https://youtu.be/Hsf7nTXDhYw?t=6m16s

Re: AW: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-23 by Florian Anwander

This video example doesn't have to do anything with the VCO and its tracking. It is about how the distorting filter reacts on the VCO.

On 23.09.17 23:58 , a11@live.nl [Doepfer_a100] wrote:

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Thank you for your reply, Florian.

The reason I ask this is, that sometimes when you VC tune/pitch-V/Oct a VCO, the sound changes, so you can not play a decent melody.

You can notice it here in this video - not so clearly - from 6.16 and at 7.06 minute.
If the signal was distorted more and more , the changes in sound would be also more and more.

It's a pity, because the OptoFet filter has some very nice [sweetspot] distorted sounds.

https://youtu.be/Hsf7nTXDhYw?t=6m16s

Re: AW: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-24 by a11@live.nl

Sure, it is not about the VCO and its tracking itself.

But it is about the sound coming out of the distorting filter.
It is this sound that I want to V/Oct [not digitally], because the sound changes when its pitch changes.

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-24 by florian anwander

Hi

Am 24.09.2017 um 02:20 schrieb a11@live.nl [Doepfer_a100]:
> But it is about the sound coming out of the distorting filter.
> It is this sound that I want to V/Oct [not digitally], because the sound
> changes when its pitch changes.
The  sound only changes, because the filter is not controlled by the 
same voltage(s) as the VCO. The VCO has an LFO Modulation on it, which 
the VCF doesn't have. So the relation oscillator-frequency to 
filter-frequency changes all the time, and in consequence the sound 
changes all the time.
If this modulation would affect the filter too (and if the relation 
F-osc to F-filte would be on one of these sweetspots), then the sound 
would be steadily distorted the same way.

Florian

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-24 by a11@live.nl

Very good insight, Florian. I'll try that.

But only one is limited than to equivalent VC with its own effect.

Thank you,
Ben