vocoders, OT: ETI/Powertran available in sweden!

[Bjorn Julin]

This might concerna only scandinavians but
there is a wery good condition ETI/Powertran vocoder
at the Music shop,musik borsen in Vesteros for
3200skr. It looks to have been built at the
Powertran factory or!!

>Speaking of vocoders....
>
>I have looked all around at the available information on vocoders and what 
>I
>have come to understand is that all the vocoders that people praise as the 
>best
>sounding have very steep filters (some 54db/oct.) and lots of them. I am
>considering constructing one, but all the designs I have seen on the net 
>are
>for machines with 10 bands or less, and 24db/octave filters.

Use 24db filters with smaller Q (band width) but mor of channels
and you get the same effect as you would use 54 db filters.

Besides 54 db filters are wery difficult to design properly,
to get stable or what ever!!

>Does anyone have a
>schematic for a better vocoder? has anyone built a big daddy? should I save 
>my
>1000 uk punds and buy a new EMS 2000?

No!

Reg
BJ

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