[sdiy] Theremin tone/waveform' question

[Dave Manley]

I have some vague recollection of suggested mods to the Paia theremin to 
more closely emulate...ok I did the google:

http://www.paia.com/ProdArticles/therefaq.htm#tone
http://www.paia.com/ProdArticles/thereton.htm

HTH,
Dave


Paul Perry wrote:
> I asked something like this before, but with no replies - maybe I was not
> specific enough..
> 
> When I listen to a traditional RF heterodyne theremin, I think that the
> waveform - and hence tone - varies as one moves through the audio band.
> And I expect that some or all of this is because of 'pulling' between the
> oscillators - that is to say, if one were to examine the waveform of the
> output, you would see some distortion as the frequency changes.
> 
> If that is true, then is there any way that one can simulate a theremin
> sound, using standard analog synth modules?
> 
> Perhaps someone has some genuine theremin samples to hand, and can actually
> examine the waveform at various frequencies & describe them!
> After all, the theremin is a monophonic device, so it must be possible to
> make a fairly faithful replica.
> 
> Do the waveform changes vary according to whether the oscillator is shifting
> rapidly or slowly? Any opinions welcome!
> 
> paul perry Melbourne Australia
> 
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