|
I have had tinnitus since I can remember, telling my Mom about it when I was 7-8 years old. Mid-high-pitch tone, varies in intensity... after a visit to my massage therapist it almost disappears... for about a day. Had a severe ear infection in my late teens that resulted in a punctured right eardrum, so some loss there too. But apparently my ears/audio processing/brain compensate quite well, as I routinely hear details in the music that my wife (10 years younger and only worked in offices) often misses.
As for standard occupational hearing tests, Toole states Ch17.1:
"Occupational conservation programs are almost totally irrelevant to audio professionals and serious audiophiles. ... It is essential to know that in existing national and international standards, the ONLY criterion considered is the preservation of the ability to understand speech. ... the goal was not to prevent hearing loss, it was to preserve enough that at the end of a working life, conversational speech at 1 meter distance was possible. ... it is considered acceptable for hearing loss to accumulate up to 25dB in both ears at 1/2/3khz audiometric frequencies. ... Further losses from 25 to 40 dB are described as "slight".
Acceptable and slight... until workers end up half-deaf at retirement age.
More modern clinical audiometeric tests may include some full spectrum criteria, but I'd guess that unless the wider spectrum test is requested (prescribed by the physician?), it may not be done as a matter of course. |
|