Doepfer

--- 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