If you are feeding these signals into the mic in jack on your computer the “level” is off. Check the following. Turntable will need a preamp unless it has a line level switch. On your computer see if you can toggle the audio input to line level and not mic level.
My tear was 1/4” in a Boston G1. I used a little “Tear Mender” and made sure I got it in the tear. Used a sharpie to color it.
I didn’t push on the tabs, but put a spudger along the seem and the clips released with minimal force!