HowdeeDoodee wrote:
I am recording old LP's, going from my headphone jack to the line input on the back of my computer, into a wav file.
I am getting a staticy zit, zit, zit sound in my recordings. I tried adjusting the volume with no effect to take out the noise, if noise is the actual description. I tried AGC with no effect. I tried switching from Stereo Mix to Line in with no effect. I do not hear the zit, zit, zit sound when I am recording. On the frequency graph I can see solid yellow bars that go all the way up and down on the graph which I think indicates where the zit, zit, zit occurs.
Thank you in advance for any replies.
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I suspect that you are having grounding problems with your connection from your headphone output to your sound card input on your PC. If there is a difference in the ground potential between your music source (the output from your headphone jack) and your PC, then when these two grounds are tied together, as they are surely are, according to your description, a ground current will flow in this connection. This current will produce a voltage that gets injected into your sound card, producing all sorts of nasty noise effects.
This is an ancient and well-known problem in audio engineering. Accordingly, there are now common hardware solutions to preventing the flow of such ground currents, thereby eliminating all of these nasty noise effects. The neatest solution for this problem is a small isolation transformer in the signal line between your sound source and your PC sound card. I bought one recently from a company which you can find online: www.dak.com. They are in the Los Angeles area in California. This unit is their PC-1 isolation transformer, and it works like a charm! They will sell you this transformer (with built-in input and output cables) for about $30 plus shipping. You also get extra cabling plus some software. All in all, this is a bargain, considering what it does and the elegant solution for the problems which you are apparently suffering. Or so I think.
Other companies also make ground isolation transformers of various types. But I do not believe that any of them are cheaper than this tiny unit from DAK. So unfortunately, it appears that you must spend some money to get rid of your problem. If it is what I think that it is, it is a _hardware_ problem, which has nothing to do with WavePad.
I could be wrong, but with over 50 years experience in the electronics engineering, audio design, and circuit design, I don't think so.........
By the way, I have no connection whatsoever with DAK. They have a fascinating (albeit clunky and virtually idiot-proof :-) ) website.