Turn treble to 10, bass to 1, reverb and delay up full. Also if you're playing guitar, turn the instrument upside down first, re string it and try again. If you're playing bass just play as loud as possible to down out all "scratchyness". If you're playing drums, stop.
I figured it out- It's only scratchy when I play the recording through a foot pedal. I couldn't really tell this was the case because I never listen to other recordings of my playing. sounds fine on my phone
And we still have no idea what you're talking about. Glad you figured it out