Raven One Motor Noise Problem

Update - I followed Lewm's lead (question) and moved the TT to my wood floor. "No noise."

This is a big shot in the dark. I don't have any experience
with your raven. But I did have a sme 20/2 with a noisy
motor at one point. Turns out I had been putting 2 drops
of oil in it over time vs one drop a year. I thought for
sure it was a bearing going out. Sme sent me some
instructions, 30 min later and a few q tips noise was gone..

Call Jeff at HIGHWATER SOUND he can fix the problem i never heard of a noisy RAVEN.

Ebm, Apparently you have never read Edgar Allen Poe. (Could not resist the opportunity for some levity.)

I have the Raven AC-3 and at one point I heard a noise which I located to one of the motors.
The pulleys on top of the motors are attached to the spindles via an Allen Key screw so I loosened this screw and pulled the pulley up slightly and re-tightened the screw.
No more noise.
It turned out that the pulley was pushed too far down the spindle and rubbed against the top of the motor casing as it turned?
An easy fix to try.