Vocoders

[Paul Perry]

At 05:00 PM 3/03/99, steve Grainger wrote:

>	I want a vocoder for live and regording purposes. 
>	Am considering either the PAIA vocoder kit or possibly
>	an 'budget' effects unit with a 'vocoder' program (eg. Zoom 1204)
>
Very much  matter of taste, Steve.
A vocoder (IMHO) needs 10 frequency bands to do an adequate job, the PAiA 
and many cheap digital ones dont have this. 
But, might work for you.
It isn't a cheap diy project, because for 10 bands you need 10 envelope 
followers, 20 band pass filters, 10 VCAs.

Is it possible to hack a stereo EQ into one?
I dont advise it. You still need the VCA and env foll components.

paul perry Frostwave P/L melbourne australia

if anyone IS doing it, use compander chips (NE572 etc)
these have 2 VCA and env foll in each chip.