When I try to record vinyl on my Jensen JTA-280, the sound on the recording sounds like it keeps fluctuating from loud to quiet. It’s been getting extremely annoying and I still have no solution. Another problem is that when I try to record at a certain input volume, let’s say 8, the slider automatically goes up to 9 or 10 all by itself! After it goes up that high, the sound gets all blown out and the recording is trash 
. Is there some auto-setting I’m missing or…? Can anyone explain my issues and a solution to both? Thank you 
This is probably down to Windows trying to help you do a conference with Windows Enhanced Services.
http://manual.audacityteam.org/o/man/faq_recording_troubleshooting.html#enhancements
Koz
Are you recording from the USB connection? That ought to be preferable.
Gale