How are you recording directly into Premiere Elements? Are you using the Narration tool?
Do you have your speakers turned down or muted?
Yes, I am recording directly using the narration tool. I get the same effect whether or not my speakers are muted, why would that matter?
Well, depending on the mechanics of the guitar, you can basically have a mic, with the pickup also getting the signals from the speakers, i.e. feedback.
I would first turn off all speakers, and use headphones to monitor the Audio.
Next, if that does not clean up the signal, I would begin checking out the connections, and especially the impedance of all devices. Most sound cards have both a mic-in and a line-in, and one should match the impedance of the device and the sound card's input.
Having the both the mic and speakers on will usually just give you a hollow sound or howl.
If you have a distinct echo, this is because digital processing has a slight delay and the processed sound is being reintroduced back to an input somehow.
Sounds like you havent got a relevant gain control fully off.
If you are using both, you might also have crosstalk in your sound card between the mic and line inputs.
Maybe the pickup coil on the guitar is picking up the radiation from the computer. Move it further away to see if this changes.
Thanks for the replies thus far, I have been very busy (end of the semester!) and haven't had a chance to try. Let me just say, I have an onboard soundcard, with a single mic/line in. I tried recording with my speakers muted and unmuted, but there is still a very distinct echo which reiterates itself about 6 times. I will update when I get a chance to mess with it again.
When you get to it, also please look into the output specs. from your guitar, and the specs. for the input to your audio chip. Seeing how well those match up, might be beneficial in finding the cause of your echo.
Good luck with the semester, and with troubleshooting this problem,