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A-188-1 clock frequency input

2014-01-14 by Zoë Blade

Hi!

So I was trying out some basic Karplus-Strong synthesis on my A-188-1.  It makes a really nice sort of plucked string sound!  I've been having great fun just playing a middle C and sampling it.  It would be even nicer to play it live, with all those wonderful subtle imperfections that really bring it to life.

So I connected my pitch CV output to the BBD's clock frequency input, and it's just shy of 1V/oct.  It manages something like 10 or 11 notes per volt (as both the maximum of CV2 and the fixed setting of CV1, I believe).

I realise it isn't designed to do this, and it's a bit of a hack.  Still, I was wondering if there might be some sort of (presumably warranty-voiding, and I'm fine with that) mod I could do to make CV1 and/or CV2 everso slightly more sensitive?  Is there a preset potentiometer or something for this, perhaps?

I really will end up buying the German language A-100SM at this rate... :)

Thanks,
Zoë.

Re: [Doepfer_a100] A-188-1 clock frequency input

2014-01-14 by JS Home

Surely you just need to amplify it a touch with A183-3 then run it through an offset/attenuator. Job done!

Jonathan Shapero
Sent from my iPhone

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On 14 Jan 2014, at 19:50, Zoë Blade <zoe@bytenoise.co.uk> wrote:

> Hi!
> 
> So I was trying out some basic Karplus-Strong synthesis on my A-188-1.  It makes a really nice sort of plucked string sound!  I've been having great fun just playing a middle C and sampling it.  It would be even nicer to play it live, with all those wonderful subtle imperfections that really bring it to life.
> 
> So I connected my pitch CV output to the BBD's clock frequency input, and it's just shy of 1V/oct.  It manages something like 10 or 11 notes per volt (as both the maximum of CV2 and the fixed setting of CV1, I believe).
> 
> I realise it isn't designed to do this, and it's a bit of a hack.  Still, I was wondering if there might be some sort of (presumably warranty-voiding, and I'm fine with that) mod I could do to make CV1 and/or CV2 everso slightly more sensitive?  Is there a preset potentiometer or something for this, perhaps?
> 
> I really will end up buying the German language A-100SM at this rate... :)
> 
> Thanks,
> Zoë.
> 
> ------------------------------------
> 
> Yahoo Groups Links
> 
> 
>

Re: [Doepfer_a100] A-188-1 clock frequency input

2014-01-15 by Zoë Blade

> Surely you just need to amplify it a touch with A183-3 then run it through an offset/attenuator. Job done!

Fantastic idea, thank you!  Now I regret selling my A183-3, heh...

Come to think of it, as I'm deriving the pitch CV using an MCV-24, I could retune that to compensate.  That should work, I think.

Thank you!  Boosting the signal before sending it to the module.  That's what I was missing.

Are there any other ways around it?  I love how modulars encourage lateral thinking, and there are so often several solutions to whatever someone's trying to do. :)

Thanks,
Zoë.

AW: [Doepfer_a100] A-188-1 clock frequency input

2014-01-15 by yahoo@doepfer.de

You may simply change the trimming of the scale of the internal HSVCO. It's
described in the document A1881_adjustment.pdf. A link to the document is
available on the A-188-1 info page.

Best wishes
Dieter Doepfer

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> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von Zoë Blade
> Gesendet: Dienstag, 14. Januar 2014 20:51
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] A-188-1 clock frequency input
>
>
> Hi!
>
> So I was trying out some basic Karplus-Strong synthesis on my
> A-188-1.  It makes a really nice sort of plucked string sound!
> I've been having great fun just playing a middle C and sampling
> it.  It would be even nicer to play it live, with all those
> wonderful subtle imperfections that really bring it to life.
>
> So I connected my pitch CV output to the BBD's clock frequency
> input, and it's just shy of 1V/oct.  It manages something like 10
> or 11 notes per volt (as both the maximum of CV2 and the fixed
> setting of CV1, I believe).
>
> I realise it isn't designed to do this, and it's a bit of a hack.
>  Still, I was wondering if there might be some sort of
> (presumably warranty-voiding, and I'm fine with that) mod I could
> do to make CV1 and/or CV2 everso slightly more sensitive?  Is
> there a preset potentiometer or something for this, perhaps?
>
> I really will end up buying the German language A-100SM at this rate... :)
>
> Thanks,
> Zoë.
>
> ------------------------------------
>
> Yahoo Groups Links
>
>
>

Re: [Doepfer_a100] A-188-1 clock frequency input

2014-01-15 by Zoë Blade

> You may simply change the trimming of the scale of the internal HSVCO. It's
> described in the document A1881_adjustment.pdf. A link to the document is
> available on the A-188-1 info page.

Thank you, I can't believe I missed that one!  OK, that's three ways to solve my problem in total, thanks everyone. :)

All the best,
Zoë.