hello,

is there a simple way of DIYing doepfer a110 to go beyond audible
frequencies (up the scale)

best to all
t

On 6/6/05, achtung_999 < ernst@... > wrote:
> --- In Doepfer_a100@yahoogroups.com , Bakis Sirros
> <synth_freak_2000@y...> wrote:
> > hello ernst,
> > could you please give us some more detailed info about
> > your suggestions in your email below
> > i need more details, in order for me to be able to
> > create some new polls for your suggestions.
> > regards,
> > bakis.
>
> > --- achtung_999 <ernst@d...> wrote:
> >
> > >
> > > A list of things that come to my mind after some
> > > thinking.
> > >
> > > 1) Still the pitch tracker/pitch demodulator,
> > > preferably with a range switch.
> > > 2) VOSIM oscillator, the Keagi/Tempelaars design.
> > > 3) A tendency mask generator. another design from
> > > the sonology studios. Easily explained
> > > this is 'random cv between a maximum and a minimum
> > > value'
> > > This is nice probably possible as an extension of
> > > the a172 max/min. An idea from the
> > > workingmethods of the german composer G.M. Koenig
> > > (Stockhausen's assistant on a.o.
> > > 'Kontakte').
> > >
> > > I could elaborate more on these if you guys are
> > > interested.
> > >
> > > Greetings,
> > >
> > > Ernst
>
>
> Hello Bakis!
> Of course I can add some more info.
>
> 1) I see that Doepfer has put the pitch tracker on the overview as a
> module in
> development, good.
> I would like to stress that a range switch compatible to the A110
> osc.
> So the old practice of saving ctrl. voltages to tape or an other
> medium can be used. By
> means of modulating the pitch of an a110 osc. with the voltage to be
> recorded and then
> recording the audio output of the a110. By setting the voltage range
> on a pitchtracker to
> the same as the one on the osc. the voltage can be retreived again
> and used over and over
> again... And: yes, I know this can also be done with amplitude.
> However the frequency
> based way I find much more elegant and accurate.
>
> 2) The Vosim oscillator is a classic from the Institute of Sonology,
> where I studied
> electronic music. The synthesis method uses a squared-sine (achtung:
> squared in the
> mathematical sense!) pulse with a number of repetitions of which the
> amplitude decrease
> and the number of repetitions can be set via voltage control. It goes
> beyond the scope of
> this mail to elaborate on this extremely nice synthesis method, it
> can sound very voice-
> like, hence the name VO(ice)SIM(ulation). I know that some people I
> know at Sonology
> might be interested in licensing the method to Doepfer.. A page on
> the vosim module
> from the Sonology studio manual is available from my webspace here:
> http://www.xs4all.nl/~eloo999/downloads/vosim.pdf (text copyright:
> Kees Tazelaar)
>
> 3) The tendency mask generator at Sonology is a device which you feed
> an upper limit and
> a lower limit as cv inputs (I imagine in a doepfer system it could be
> an extension of the
> a172 max/min). There's also a clock which can either be internal
> or an external pulse..
> The device gives out random values between the upper and lower limits
> at the clock rate.
>
> I hope this takes a few questions away…
> If not, please ask me for more… I'm getting lazy here!
>
>
> Greetings,
>
> Ernst
>
>
>
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