Thank you for posting this question! It was helpful and reassuring for me to learn that others have had symptoms similar to what I'm currently experiencing. (I found at least two other forum threads similar to this topic, but yours was the first.)
Did this ever resolve for you?
In reaction to some of the responses in this thread, I'd like to say that visiting a doctor for a problem like this may be an essential component to self-care, but it's not a magic bullet, as seems to be implied. The medical care system is rife with potential hurdles: bureaucracy, miscommunication, misdiagnosis… It can be very difficult getting appropriate treatment for a less-than-common problem, or knowing (as a patient) what qualifies as appropriate treatment. Doctors can differ greatly in their philosophies and experience—for instance, whether they tend to adopt a "wait and see" approach or suggest a more pro-active solution.
Also, many doctors would have no idea what's meant by "ring modulation" as it's more of a musical or audio engineering term. Therefore, it makes complete sense to me that you would seek counsel from others in your field who understand this terminology (and who might have had a similar experience).
In the past week and a half, I've seen an urgent care physician, two otolaryngologists, an audiologist, and spoken with my primary care provider. My otolaryngologist's initial recommendation was a saline nasal rinse, which had no effect and seemed based on a misdiagnosis. Following a hearing test, which I had to request, I'm now taking an oral steroid at the recommendation of the second otolaryngologist. The hearing test seemed to be a crucial step in the process; without it, doctors tended to discount my reported symptoms. In my case, I had a sudden moderate hearing loss in one ear (adding to a pre-existing loss) with no obvious cause. (Perhaps a virus? It was initially accompanied by a tender area on the same side of my throat.) Days later, I began noticing a mild "ring modulation" effect for certain sounds—I play guitar, and my instrument currently sounds out of tune to me in my right ear. I'm actually hoping this later symptom might be a transitional state as the hearing gradually restores itself… but I really don't know, and neither do the doctors.
My point: It's nearly impossible to be certain of the right course of action for a problem like this. It boils down to giving the issue the amount and type of attention you think it merits, whether that means visiting many doctors—until a reasonable solution or treatment is found—or none at all.
(I will say, in my case, the doctor who recommended the steroid indicated that it produced the best outcomes when begun earlier rather than later—that is, as soon as possible after symptom onset. So a "wait and see" approach may have its risks.)
Thanks again!