Home Made Vocoders.

[ClockworkRobot]

[Robot Voice]
I was eyeing up a project home made vocoder on ebay but the price got a bit strong for me:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0237555023
But I do quite fancy the idea of making a vocoder.

I built a Paia vocoder a while back. It's a nice simple project and the results are ok but I fancy something a bit more sophisticated that may generate a richer sweeter sound.
Is the quality of the sound on these things mostly down to the number of bands or is there a bit more to it than that?

Ferreting about the internet I found documentation of a few machines which I'll list below but I was wondering if anyone had any advice or experience with these machines or had any other designs to recommend?
[/Robot Voice]

Elrad ETI Vocoder 14 channel Vocoder
http://www.timewind.se/schema/Eti/
http://web.inter.nl.net/hcc/davies/voceti.htm
http://www.effectsdatabase.com/diy/eti/vocoder
http://www.stoffelshome.de/vocoder_links.html

Elektor Vocoder 10-channel vocoder
http://www.timewind.se/schema/Elecvoc/
http://obsoletetechnology.wordpress.com ... r-vocoder/
http://yusynth.net/archives/Elektor/Vocoder-1980.pdf
http://www.msc175.de/geraete/vocoder/vocoder.htm

Unknown
http://www.instructables.com/id/Build-a ... g-vocoder/

EMS Vocoder 2000 clone
??

Okita
http://213.134.203.22/~kostik/synth/voc ... -okita.pdf
14 band
http://www.sdiy.org/cbm/vocoder.htm

Paia Vocoder 8 channel?
http://www.paia.com/vocoder.asp

If anyone knows of any other vocoder plans please share them, whether you've tried 'em or not.

Thanks.

[Just Me]

Jurgen Haible is preparing to make boards and a kit.
http://www.jhaible.de/vocoder/living_vocoder.html

[ClockworkRobot]

Jurgen Haible is preparing to make boards and a kit.
http://www.jhaible.de/vocoder/living_vocoder.html

Oh that very much looks the business. Thanks for the tip. I'll follow that project with great interest.

[cloudhop]

Interesting to hear about building a vocoder...I tried the Orange and Native software vocoders but not having any hardware to compare with I'm undecided..I know I wasnt too impressed..nothing like the effects Ive seen demonstrated with various hardware vocoders..I too wondering about building..
could you let me know what you decide on?