vocoders

[Theo]

A ex-band mate of mine had a Elector vocoder.
We had very good results with it.

The Elektor vocoder is a 10 band design, not 14.
Part of the secret is that the bands are not divided equally over the audio
range
but are concentrated in the part of the spectrum that is important to speech
recognition.
The bands are, lowpass, 265, 390, 550, 800, 1200, 1770, 2650, 3900, high
pass.
Also very cool is the possibility to patch the analysis and synthesis
filters any way you like.

I can snail mail a copy of the original DUTCH articles for those interested.

Bye, Theo


From: Kirke Sonnichsen <kirke at lmi.net>

> The Synton used 54dB/va filters. Unfortunatley I've only heard
> it. I've never been able to find schematics for the 221 (I share
> your curiousity) but, Felix Visser, it's designer, did a 14 band
> DIY beauty (w/24db/va filters )for Elektor in the 1980's (with a
> followup article on a really nice voiced/unvoiced detector). I've
> never heard the 14 band but, I've hear it sounds great. I'm sure
> I've seen that stuff online somewhere but, I can't remember where...
>
> - Kirke
> (all these bands and no drummer)
>
>