Originally Posted by
Pharos
I have severe hearing loss in my right ear, nothing much above 5k, and some in the left. In my last job as a BT field 'engineer' I had to trace lines using a detector which produced at maximum a level of 131.5 dB in the headphone, and high levels were necessary when in a noisy environment, eg. 105dB at London Bridge.
irony, after litigation I purchased my current loudspeakers which go up to 50kHz.
At the BBC in '70 we used to clean uniselectors, and used an aquarium full of Inhibisol with our arms emerged in it up to the elbows; it is not unlike carbon tetrachloride.
At the Lab of the Gov't Chemist I used to maintain gas chromatographs, lined with asbestos, and on the notice board were the three types, white, blue, and brown, listed as a serious hazard to the lungs.
I do think that hearing aids are a no no for me because they are unlikely to be transparent, and as with glasses, I insist on making myself work to maintain what I have, and, although briefly, listening at 130dB at 30 ft on ATC 100s which I did in about '98 does not improve intelligibility. I restrict myself to about 75 max now, and hear everything, (except due to hearing loss, the ding bells on Enigma).