Getting Vocal in my old age....

[patchell]

    This is the nasty part.  I want to have a control voltage that will
"tune" each vowel.  So, 0 volts will be "ee", 1 volt will be "i", etc...  If
you look at the table of Formant frequencies here:

http://www.silcom.com/~patchell/voicesynth/voicesynth.html

    You can get an idea of what I mean.  I think it would be kind of neat to
be able to have the filter morph from one vowel to the next (I could be
wrong, but, my Nord Modular has a filter that does something like this, and
it does sound kind of neat).  I was tempted at one point to use a micro with
an A/D to do the mapping, but that would be "too digital". (I may, in the
end, do that anyway, but I wanted to try an analog solution first.  The
micro idea is apealing because you could remap the vowels in any order you
wanted).

    I think I have come up with a piecewise linear (with diodes) way of
doing the functions.  Hopefully, I should have them done today.  If I am
really energetic, I might be able to build the filters as well.

Paul Perry wrote:

> At 08:53 PM 24/12/00 -0800, Jim Patchell wrote:
>
> >    So, I decided to start working on a project that has been on the
> >back burner.  About a year ago I started working on a Vocal Filter.  I
> >sort of gave up on it because processing the control voltage to get the
> >apropriate filter frequencies looked real nasty...
>
> Where is the nastiness? you only need 3 filters.
> Are you trying to trigger envelopes off for the F & Q or what?
> Simulate specific vowels?
>
> paul perry Melbourne Australia

--
 -Jim
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