LVM, was Re: [sdiy] PIC Quantizer project

[john mahoney]

Welcome back, Servo! Don't get me wrong, but I could tell that you
were away.

> ... the New Generation of Low Voltage Modulars? (NGLVM or just
> LVM if you prefer)

LVM works for me, although 5V isn't considered low voltage anymore.


> ... or maybe 0 to +5V but centered around 2.5V, but that's another
> argument/thread.

Seems like a good discussion to have. I don't think it would take a
huge effort to design a 5V synth as compared to one using "standard"
levels. One hard part is deciding how to do everything with 0 to 5V.
How do you handle bi-polar signals? Use +/-2.5V and shift it to 0-5 as
needed (like, where it meets a digipot)? But if you're going to do all
that level shifting, maybe you don't save much. We need to examine all
the voltage levels used in a synth. As others have said, filters don't
use full-scale signals internally, anyway!


> <blasphemy>
> switching to 0.5V per octave instead of the 'traditional' 1V per
octave.
> Then we can still get a full 10 octaves out of the CV range.
> </blasphemy>

Seems logical to me.
--
john (used to be a CAD geek, too -- now just a cad *and* a geek)