Theremin trouble...

Hmmm... Okay, the problem did not lie with the shielding. Today I bought a premium jack->jack cable, replaced one of the jack plugs with a minijack, and I still have the same problems... Now considering it worked fine at the guitar shop, I tried connecting it to one of my regular amplifiers and what do you know? Prestine quality Theremin heaven!

So the problem apparently is with the line in on my computer introducing some sort of feed back noise. Do I really have to throw money after an external amp just to have something between my computer and the theremin, or do you guys have any other ideas?

I really need to be able to record the sound from the Theremin, since part of the fun lies with screwing around with it afterwards :-)

Regards

Simon

You could try putting a 1:1 audio transformer between the etherwave and the computer. They transmit the signal really 1:1 but without physical connection (ground loops etc.) between the two devices.

They are sold (I do only know for Germany) at around 5 EUR. This is not a big risk and in 99% your problem will be solved. You may find them also here:
http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=180209170189

I had this problem a couple times, and it seems to have been related to whatever may have been around the Theremin, possibly causing interference.

I first noticed it when I brought it to Colorado in November and thought it might have to do with the climate change (Sea level to Mile-High). I'm pretty sure it was something interfering with it, though, kind of like what happens when it picks up radio signals.

When I got home, it was fine for a while, and then started happening again. I tried moving the Theremin to different areas of my apartment, and it helped. It looked like it was being caused by something around it. This could also explain why a different cord at the guitar shop seemed to fix yours when you brought it in.

I could be way off, though...