Doepfer

At a guess, the ms2000's is some sort of ensemble effect and probably works 
by use of delay lines.  The ensemble effect was originally designed to 
(cheaply) emulate unison.  So the best way to achieve this effect would be 
via some sort of stereo panned unison.  You could so this via multiple 
detuned voices mixed to various positions in the panorama spectrum.  This 
would require a lot of modules (oscillators, mixers, and sundry controllers) 
but would undoubtedly give a very rich and convincing effect.  The next best 
would to try copy the ensemble effect itself.  The easiest way to do this 
would be via some combination of extra oscillators and bbd modules (using 
cross feedback).  The limited bandwidth is less significant at shorter delay 
times and could actually help smear the signal.

As far as using an allpass filter is concerned, the only one in the doepfer 
range, that I am aware of anyway, is in the a107, which is a fairly 
expensive module, and I have no idea of how good it sounds.  You, could, to 
some extent anyway, mimic an all pass filter by feeding all of the 
simultaneous outputs of a multimode filter into a mixer.  You'd probably 
need one for each side, though, as you'd want to emphasise and de-emphasise 
complementary frequencies in each channel and it would probably take a fair 
bit of tweaking to get the effect you're after.  Mild comb filtering can 
also work pretty well as a stereo widener, as can a notch filter on each 
channel (I often use a static phaser for this sort of thing).  But all of 
these would skew the signal in some way rather than spreading it out...


> >danfarmer19732003 wrote:
> >
> > > On my korg MS-2000 it has an effect that widens the sound. IE, at
> > > minimum the sound is very centered and mono. But by applying the
> > > modulation I can make the sound from slighty wide to very wide.
> > >
> > > Now, if I wanted to do this with the doepfer system, what modules
> > > would be best for this?

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