[sdiy] Paia Vocoder clarifier mod toggle?

[Stephen Begin]

Yeah, two sets of boards was about the best idea I could come up with too.
I was just hoping that I was overlooking something that would be common
knowledge to those more experienced than I.
I don't intend to turn the mod on or off while in use, so I'm not concerned
about the popping when I switch it.  I suppose it would be a horrible thing
to do, but maybe I will do something like put a separate switch (or two?) on
each band.  I'm pretty sure that I'll look at that a few years down the road
and wonder what on earth I was thinking, but I'm a beginner so I've got to
act like one :)
Thanks for the help though!
-Steve


From: "harrybissell" <harrybissell at prodigy.net>



> 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.
> > >
>