Tim,

excellent work - though I did not yet read and understand everything.

To speak the truth the A-106-1 was designed more by trial and error without
that terrific theoretical background.

If the results of the second version of the MS20 filter are promising we may
consider an A-106-2 provided that you give us the permission and no
copyrights are affected. Even if you find out an improvement of the A-106-1
of course I'm interested.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von Tim Stinchcombe
> Gesendet: Mittwoch, 30. August 2006 23:06
> An: Doepfer_a100@yahoogroups.com
> Betreff: 1 OT: Korg MS20 filter study
>
>
> Hi list,
>
> A little OT I guess, but there is a connection through the A-106
> (which partly triggered my interest in this work in the first
> place!). I have spent a lot of time looking at the differences
> between the early and later MS20 filters, and have written a 'report':
>
> http://mysite.wanadoo-members.co.uk/tstinchcombe/synth/MS20_study.pdf
>
> File is about 2.25megs, with much mathematics, but some may find
> something of interest in it.
>
> Next I plan to build examples of both filters and see how the reality
> ties in with the analysis (and one outcome will be to see if I
> can 'tame' the resonance response in the A-106, which is rather too
> much 'all or nothing' for my tastes).
>
> Regards,
> Tim
> __________________________________________________________
> Tim Stinchcombe
>
> Cheltenham, Glos, UK
>
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