[sdiy] sequential multitrack schematics.
Harry Bissell Jr
harrybissell at prodigy.net
Thu Sep 28 16:23:53 CEST 2006
I was understanding the idea would be to
modulate the waveform selection Cv (not the Vwf)
otoh I'm still leery of the idea
H^) harry
--- Rainer Buchty <rainer at buchty.net> wrote:
> >You can't use a saw or triangle... it would
> discrete switch them
> >anyway, internally. If the DC points of each wave
> were different, the
> >result could be nasty.
>
> If I read the CEM3396 datasheet correctly, you need
> to keep track of
> frequency, pulse width, and selected waveforms.
> Hence, modulating Vwf
> would give somewhat unexpected results anyway.
>
> If you change the frequency, you will alter the
> waveform w/o also
> adjusting Vwf. Similarly, you need to adjust the
> pulse width when
> changing waveforms.
>
> I wonder if there have been any non-uC-based synths
> using the CEM3396?
>
> Rainer
>
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