2 modules ideas

[jbv]

>
>
> I've been thinking about that one for a while.
>
> You could add a bunch of rectifiers and envelope followers on the individual
> filter outputs.
>
> Record the spectral dynamics of one sound, store these digitally in a
> 'spectral sequence' bank, then replay them to vocode another sound.
>

Well... actually, I've been working on that idea too,
but from a different point of view.

The CEM3350 is interesting because Q and Fc can be driven by
simple CVs.

For the above idea, a bank of fixed BP filters seems more
adequate.
What I did was to re-design the Elektor vocoder, which is
now a 30-bands 1/3 oct. vocoder with MIDI interface : the output
of each band of the analysis section ( BP -> rectifier -> envelope
follower) is converted into MIDI ctrl messages and can be
stored with a sequencer.
A LED matrix allows also to visualize in realtime the 30 bands
analyzer (like a spectrum analyzer).
The synthesis section, on the other hand, accepts MIDI ctrl
messages from the vocoder which can be used to sculpt
the spectrum of another sound.

Needless to say that it's a rather big project.
I have designed all PCBs and almost finished uC software,
but haven't got the time to built nor test anything yet...

And I was wondering who could be interested in building
such a beast...

jbv