Ingo,

thank you for this clarification. Yes, the circuit used in the new VCO has a
VCF and VCA available and this may explain some of the unusual functions of
the module. Of course we could omit these sections to obtain a "pure" VCO
but this does not make sense from my point of view. And don't forget the
linear FM of the filter. This is not possible with any other filter of the
A-100 (I don't know if there are other filters with linear FM available).
And a VCA for AM applications is not a bad idea too. So you could treat the
VCF and VCA as a (nearly) free extra.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von selfoscillate
> Gesendet: Freitag, 8. September 2006 08:29
> An: Doepfer_a100@yahoogroups.com
> Betreff: 1 Re: New impressive Doepfer modules revealed!!!
>
>
>
> hello guys,
>
> just to clear some things out on the new a111/2 dynamic vco:
>
> the module uses a special ic for it's functions.
> this ic features not only the vco, but it has also
> the vcf, the vca and the panning unit built-in.
> since all the parts are already there, they are brought
> out to the front panel. the vcf in the a111/2 is similar
> to the vcf in the a109, but it is not the same, as the vcf
> in the a111/2 can be modulated with the triangle core
> waveform in a linear manner. in other words, you can do
> linear fm on that vcf and you cannot do this with any other
> a100 filter (they all have exponential fm). the built-in
> panning unit is basically the same as in the a109, but
> again you will use it differently in the a111/2.
> in the a111/2 you will use it to create new waveforms.
> so after all the a111/2 does not intentionally replicate
> some of the a109 features, it just has all the stuff
> on-board which is needed for this new vco design,
> and it offers the vcf because it is part of the ic
> and has that linear-fm-feature.
>
> naturally it is possible to use the a111/2 as an almost
> complete synth voice (also a module some people have asked for),
> but that was not what dieter wanted to achieve in the first
> place. the module should more be seen as a new vco approach
> which can "alternatively" be used as a synth voice.
>
> the module also shouldn't be compared with a buchla 259,
> as it uses completely different techniques (except that
> both have a triangle vco core) and offers completely
> different features. i can understand the expectations and
> yes, the 259 is gorgeous, but it's really a different
> pair of shoes.
>
> best wishes
>
> ingo
>
>
>
> --- In Doepfer_a100@yahoogroups.com , Axel Jungkunst <phaedra@...>
> wrote:
> >
> > Just my opinion! I'm a bit surprised of the doubling of the 109-
> features
> > into a new module.
> > The 259 features or something in this way would have been that I
> had
> > expected!
> > All the best
> > Axel
> >
> > Jay schrieb:
> > >
> > > Bakis Sirros wrote:
> > > > hello jay,
> > > > for standard stuff the a109 is ok.
> > > > the a111-2 is for more wierd stuff though.
> > > > best regards,
> > > > Bakis.
> > >
> > > I understand that the new oscillator has different features and
> how they
> > > can be used. I'm just saying that the pan/filter/vca part seems
> quite
> > > redundant in a modular synthesizer. That space could better be
> used for
> > > a second modulation oscillator like a Buchla 259.
> > >
> > >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
>
>
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