Hi Andreas

> I have jsut started making my own dvd-movies and could help looking into
> surround encoding. And I realized that I dont' have a mixer nor any synth
> capabable of surround mixing. But my A100 could be expanded with VCAs, LFOs
> and some logicmodules and panners to make it into the DVD age! Has anybody
> tried this, what modules and setup do you use

Encoding is something different from multichannel output. Encoding means:
transport a more than2channelsSignal on 2 channels of a stereo recording.
This would be assumingly quite costy and complicated on a A100.

The other story is dynamically positioning a mono signal on four or more
channels. I did this with my Nord Modular, which has 4 outputs. For a mono
signal you need simply three panners:
1.) Front <-> Rear
2.) L-Front <-> R-Front
3.) L_Rear <-> R-Rear

for circling a signal around, you need one LFO, that has phase shifted
outputs (the A-191 Sheppard Function might be able to do this - I don't own
one) or several synchronised LFOs, whose output could be phaseshifted
individually (the Nordmodulars LFOs can do this).

Something that might be VERY interesting and intuitive is: control the
front rear / left right positions with two Theremin controlers.

Florian