[sdiy] Speaking of the Elektor Vocoder (and the Korg Vocoder)

[Carsten Tönsmann]

Hi Anthony,

I thougt about building the Elektor Vocoder, but it is a rather big project, 
and people told me that software or dsp based vocoders could be the better 
ones because of the possibility of implementing filters with higher slew 
rates.

So if you compared software vocoders with hardware vocoders what is your 
opinion?

Regards

Carsten

----- Original Message ----- 
From: "anthony" <aankrom at bluemarble.net>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, February 19, 2008 11:32 PM
Subject: [sdiy] Speaking of the Elektor Vocoder (and the Korg Vocoder)


>I really liek this circuit, but I'd really like to update it to use OTA's I 
>can really get. I like the backplane idea. I'm in preliminary stages of 
>redesigning the circuit-board so that two filter units are on one board. 
>That way you could use one LM13600/LM13700/NTE870 for two filter units.
>
> I wondered: would it be better to just design the circuit board to fit the 
> bigger chip, but leave one OTA unit unused. This seems like a waste, but 
> could there be any possibility of interferance of two circuits. I wouldn't 
> think so. I'd hate to waste that many OTA units too. But it looks like the 
> board will have to be seriously redesigned. I think maybe I will end up 
> using protoboards after all.
>
> Has anybody on this list made a vocoder recently? I have some VST plug-ins 
> and just don't like them even some expensive ones. I really want the 
> schematic for a simpler vocoder like Korg's awesome little unit. Heck, I'd 
> love to buy one of those little guys on eBay. I'd make mine a faithful 
> replica, with the little keyboard, bendy mic stand, and VU meter. But I 
> haven't been able to find the schematic for it.
>
> cheers,
> Anthony
>
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