This may be something to look at also...
I, once (years ago) , hammered on the inside edge of the the hub while changing it out.
After I reinstalled it, It had a wobble and a noise that sounded like what you are referring to .. Turns out that I hit it a bit too hard and the hub edge was slightly warped... just enough to be noticeable.
I bought a rubber faced mallet not long after that incedent...