Doepfer

http://cgi.ebay.de/Doepfer-Sampler-for-parts-gate-
cv_W0QQitemZ180094368988QQihZ008QQcategoryZ46947QQcmdZViewItem

That's our CV/Gate controlled modular sound sampler system that was
available about between 1985 and 1990. Up to 8 sampling voices could be
controlled by a Commodore C64. Software for sampling, FM synthesis,
Wavetable synthesis, Fourier synthesis and Waveshaping synthesis were
available for the C64. The complete system was also described in detail
(including schematics and boards) in the book called "Sound Sampler"
published by Elektor (ISBN 3-921608-44-9) in 1988.

At this time memory chips were very expensive. Most of the pc board is
covered by the memory chips.

We also had an 8 voice polyphonic CV/Gate keyboard available and the system
could be expanded by "normal" synthesizer voice cards based on 6 CEM chips
(2 VCOs CEM3340, 1 VCF CEM3320, 1 Dual VCA CEM3330, 2 ADSRs CEM3310 on each
board) and a so-called expansion card (with several voltage controlled LFOs,
noise, S&H and other modulation sources). We also had a computer interface
available to control the complete system (sampler + voice cards + expansion
cards) from a Commodore 64 or Sinclair ZX-81 or Spectrum. Even computer
generated analog and trigger sequences were possible.

That's a long time ago. It seems that I'm getting old :-)

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von synth_ollie
> Gesendet: Mittwoch, 14. März 2007 18:51
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] whats this ?
>
>
>
http://cgi.ebay.de/Doepfer-Sampler-for-parts-gate-cv_W0QQitemZ180094368988QQ
ihZ008QQcategoryZ46947QQcmdZViewItem

How long has Doepfer been in business, anyway?

Bryan

>>> <hardware@doepfer.de> 03/14/07 2:55 PM >>>
That's our CV/Gate controlled modular sound sampler system that was
available about between 1985 and 1990.

thanks very much dieter for the info, very interesting indeed ! :O)

cheers

OLLIE

--- In Doepfer_a100@yahoogroups.com, <hardware@...> wrote:
>
> That's our CV/Gate controlled modular sound sampler system that was
> available about between 1985 and 1990. Up to 8 sampling voices could 
be
> controlled by a Commodore C64. Software for sampling, FM synthesis,
> Wavetable synthesis, Fourier synthesis and Waveshaping synthesis were
> available for the C64. The complete system was also described in 
detail
> (including schematics and boards) in the book called "Sound Sampler"
> published by Elektor (ISBN 3-921608-44-9) in 1988.

> How long has Doepfer been in business, anyway?
>
> Bryan

Bryan,

that's a bit difficult to say as it began little by little. During my study
in Munich I was playing in a band and did some modifications of amps or
effect units for me and other musicians. During that time I heard about the
(unachievable) synths of Moog, Buchla, EMS, ARP and others. End of the
seventies the electronic magazine ELEKTOR began with a DIY series about an
analog modular synthesizer called FORMANT. Though it was not very cheap to
built this synth it was within my financial possibilites to built this synth
little by little. When the synth was finished some important features had
been missing from my point of view (like a analog sequencer, a voltage
controlled phaser, a voltage controlled LFO, a VCF with voltage controlled
resonance, an external input with envelope follower, a frequency divider and
many more). I began to develop these missing modules and offered the first
ones about 1980. So you can call this my business attempts. But at that time
my study (physics) was not yet finished and only a small fraction of my
income was covered by the modules.

Based on the experience with the FORMANT and my self-made modules I began to
develop a four-voice polyphonic synthesizer (called PMS = polyphonic modular
system). But it was not very successful and it was available only as a kit
(not ready built). A few years later I heard about the famous Curtis
circuits (CEM33..) and got in touch with Doug Curtis. He delegated to me the
represention of the CEM circuits for Europe and I began to develop my first
synthesizers with CEM circuits (e.g. the voice modular system VMS and the
sound sampler system). This was about 1985. In the meantime my study was
finished and the sales were sufficient to cover my living. So one could call
this the beginning of my business. I got to know Christian Assall (he was
studying electronics at this time) and we began our cooperation in which
Christian took over all software jobs.

In 1992 the legal company "Doepfer Musikelektronik GmbH" (the German version
of a Ltd.) was founded and the crew increased to eight persons. So you could
even call 1992 the starting point.

Best wishes
Dieter Doepfer

Bryan E Cornell wrote:

> How long has Doepfer been in business, anyway?

I bought my first Doepfer Module (either triple phaser or external in - 
don't know exactly) around 1979. Dieter had his business in the 
livingroom of his flat. btw: the external in still working in my formant 
system.

Florian

Hi Dieter

> We also had an 8 voice polyphonic CV/Gate keyboard available and the system
> could be expanded by "normal" synthesizer voice cards based on 6 CEM chips
And of course there was also a Loop-Extensioncard. Loopsettings were 
done on the C64.

I must still have a working samplercard somewhere in the attic, but I 
never got my loop card working.

Florian