Speech Synthesizers

[J. Larry Hendry]

> I'd kinda assumed you could make one by just controlling the VCA of an
> oscillator (manually controlling frequency) using an envelope follower
fed
> by a mic, but I've been told this is not the case.
> What else do you need?  Can such a thing be made CHEAP, say just shaping
> the audio out of a synth?
> LMVogue

Well, there is a block diagram of sorts on the PAiA page that shows
functionally how their vocoder works.  I think conceptionally they are all
much the same.  The major differences seem to be, "how many bands?" and,
"how much money do you have?"  Seriously, the PAiA explanation helped me
understand it somewhat.

Larry Hendry