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

[anthony]

I haven't built a hardware vocoder yet, but I will make a comparison when I 
do. I don't think anyone has ever done a hardware implemented "phase 
vocoder" which is a different beast. But a lot of the principles are the 
same. I've always wondered if it was possible to make a hardware fast 
fourier transform analyzer. But I digress...

I think hardware vocoders may have the benefit of being standalone 
"hands-on" units

When I compare the two, I'll let you all know.

cheers,
Anthony

> 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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>
>
>