[sdiy] Thoughts on a Polyphonic Synth

[jure zitnik]

err yeah the LFOs shouldn't be per voice. two general LFOs.
there could be one board with a mixer and the LFOs and other general
stuff that doesn't belong on voice boards.

jure

On 3/24/06, jure zitnik <kokoon at gmail.com> wrote:
> that's exactly what i've been thinking about for the past weeks.
> my idea is to design voice modules that include something along the lines of
> - 2x VCO with saw/tri/sqr/sin + SUB (shaped?)
> - 2x 2pole SV VCF that can be cascaded into 4pole (with variable spacing)
> - 3x ADSR EG (for each VCO and for VCF)
> - 2x LFO
> - 2x VCA
>
> and then you could stack as many as you want to get polyphony of your choice.
>
> i've got a whole bunch of ideas but since i'm a total n00b i'll learn
> some more before writing about it :)
>
> jure
>
> On 3/24/06, harrybissell <harrybissell at prodigy.net> wrote:
> > You would need to duplicate all the modules that you wished for
> > in one voice.  8 eg for the VCF is probably a bare minimum.
> >
> > You probably would like 2 VCO per voice...
> >
> > And a way to keep them all in tune. Usually they use a computer
> > to measure the frequency error and compensate per MIDI note number.
> > Lookup table kind of thing...
> >
> > One thing that is NOT obvious... making a very complex single
> > voice (like for a mono patch) will not be so satisfying in a poly.
> > It will either get 'muddy' sounding... or blend so well that it
> > is totally smooth
> >
> > H^) harry
> >
> > Benjamín Velasco wrote:
> > >
> > > Hi list!!!
> > >
> > > After looking the amazing midi projects at www.ucapps.de i was
> > > wondering how difficult it would to build for example a 8 note poly
> > > synth. With the MIDI to CV from this page you could have 8
> > > independent for each oscillator. Then you would need perhaps 8 EG
> > > and 8 VCA for each note's volume? What other module you i have to
> > > repeat? Maybe 8 EG for VCF??
> > >
> > >
> >
>