[sdiy] should I BUILD SOME SYNTHS ???

Crystal crystals at sonic.net
Mon Dec 27 00:28:51 CET 2004


Harry,
i think it's a wunnerful idea. switchable would be nice.
seems like a good first project for my new half fast workstation. 

how does it sound (with the mod?)


crystal
(firing up a holiday soldering iron, and a beer)



> lol!
> while you guys are debating the prose and cons of analog vs
digitalrecording
> (I'm with the D boys btw... I use dat)
 I have been building synth modules.  Most specifically an old EFM VCF 2e
> (Moog ladder style).
 I take the buffer output and sum it with the normal LPF
> output.
> Now when the resonance is zero, there is no output from the OTA and the
> LPF
> is the only signal from the summer.  As the resonance is increased...
> the LPF
> passband is dropping BUT the signal from the OTA resonant feedback path
> is INCREASING...
> giving a pretty good compensation for the loss of volume.
>
> This trick would probably NOT work with the standard Moog style
> resonance pot (essentially
> a resistor)... but if you make the pot an attenuator and fed the
> resoance from the wiper
> (adding a suitable buffer) it would probably work.
>
> Hey what do you think ?
>
> H^) harry
>





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