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Re: hearing sudden distortion effect

Dear Jim,
I have the same distortion on one ear. It first came after I had had a period of intense playing and rehearsals in rock bands and probably due to a slightly disformed earplug. For a long period my ear would distort sounds in the way you describe. Especially when talking on the phone or in a loud milieu I would have to "protect" that ear a bit extra by putting my finger in it to avoid perceiving any distortion.
At the time I checked with a hearing doctor who found my hearing good a d said that most likely I had developed a kind of over sensitivity. This was about 15 years ago, and with some time the trouble decreased and disappeared all together (I also got moulded earplugs that I now use in all loud environments) And then, just two weeks ago, I went to an event where cannons were fired and didn't have plugs with me  Since then, the distortion is back in the same ear.
The positive with the story is that after a period the ear did recover so I hope yours do as well.

On 2 Oct 2016 06:24, "James W. Beauchamp" <jwbeauch@xxxxxxxxxxxxxxxxxxxxxx> wrote:
Dear List,

In 2009 I acquired chronic low-level high-frequency tinnitus.
Tests rhowed that it was at approximately 11 KHz 10 dB above
threshold. Most of the time I'm not concious of it and it doesn't
affect my enjoyment of music.

Friday night I attended an orchestra concert where they played
Beethoven's "Overture to 'Eqmont'", Bruch's "Scottish Fantasy",
and Shostakovich's "Symphony No. 12" in that order. I enjoyed it
all, but the last piece was especially loud, and near the end of
the last movement I suddenly experienced a loud distortion effect
on certain very loud notes. It had two attributes: 1) It was very
sudden, almost like an amplifier clipping; 2) I perceived the
sounds to be localized very close to my head, rather than coming
from the stage (I was seated about 20 rows from the stage.). The
effect was very disconcerting because it ruined the musical

This is the first time I've experienced this effect at an orchestra
concert. I remember experiencing something like this in 1978 when a
certain electronic piece by Xennakis was performed at the
International Computer Music Conference at Northwestern Univ. It was
played very loud, and I remember sounds were swirling around my head.
Others had the same experience. This was way before my tinnitus onset,
and I didn't mind it because it seemed like the strange localization
effect was just part of the piece.

Has anyone else experienced this effect? What is the effect called?
Is it related to tinnitus or is it a cause of tinnitus?

Thanks for your help on this question!


James W. Beauchamp
Research Professor
Professor Emeritus of Music and Electrical & Computer Engineering
University of Illinois at Urbana-Champaign
email: jwbeauch@xxxxxxxxxxxx (also: jwbeauch@xxxxxxxxxxxxxxxxxx.edu)
WWW:  http://ems.music.uiuc.edu/beaucham