[sdiy] Paia Vocoder clarifier mod toggle?

[harrybissell]

Of course it can be done... build two sets of boards (one with, one without)
and switch the audio outputs with a spdt switch...   ;^P

Sorry Stephen, could not resist.  ;^)

Making modifications that can be 'reversed' is usually very hard because of
the number of points that have to be changed.  Just swapping an opamp probably
means at least a DPDT switch function. You might leave the power supplies
connected to both chips, any maybe the non-inverting inputs are not used (just
tied to ground through a resistor ?) but the other pin functions must be
switched.

They may do awful things when you switch them, like pop, thump, etc...

Multiply this by the sheer number of contacts required and you will need to
use electronic switching, or relays, etc...  all of which will add 'mods' of
their
own...

if you contact me offlist with the links for the original / modded version, I'll
give
you a real informed opinion, instead of a shameless, flippant answer like
above..
but the gist of it is... switchable mods might easily exceed the complexity of
the
solution I proposed above...    (sad, but true)

H^) harry

Stephen Begin wrote:

> Sorry for reviving a dead thread, but I'm the type who likes closure.
> Given that for some strange reason, me and Phil here seem to wish to embrace
> the not-so-great-but-ever-so-rad-sounding original vocoder circuit design,
> but would also like the option of using opamps and getting a cleaner sound,
> is there any practical way to mod it so that the clarifier mod is
> switchable?  Nobody really said before if it could or couldn't be done.  :)
> Thanks!
> Steve B
>
> From: "p. hendricks" <ph at attbi.com>
>
> > I agree,, and would share the same concerns. I like mine the way it is,
> and
> > use it just for cross modulation, I think you may lose some of that sound
> > with the mod....??? can you just do the part of the mod that improves the
> > S/N ratio? I don't mind having the bands interact, I don't want mine to
> > sound like ...well... a vocoder. I think the bands blurring together may
> > give a less synthetic sound with cross mod??? just a hunch.
> >
> > Note: I say all this not having heard one with the mod done, just would
> hate
> > to lose the sound it has now.
> > best,
> > phil
> >
> >
> >
> > On 9/14/02 8:14 PM, "Stephen Begin" <trypannon at hotmail.com> wrote:
> >
> > > I don't really plan to do much in the way of speaking intelligible
> phrases
> > > through the vocoder, more like adding unusual characteristics to short
> synth
> > > sounds.  So sometimes a little muddiness is nice.
> >