I would like to thank everyone who has contributed to this thread, on-list, off-list and on other lists.
Slowly I am coming to accept that the professional industry itself is a [significant] contributory factor in this matter. The recommendation is "better earplugs" ... the implications of this attitude beggars my imagination, and I do not wish to think about the medium-term consequences.
My reading on this list indicates that levels above a certain SPL, for durations over nnnn minutes, contribute to permanent damage. The proposed solutions are to provide the professionals in the community with [better] custom-designed hearing protection. And the others?
Maybe this is about the irrationality of human behavior.
On 2013, Oct 20, at 9:14 PM, rif <rif@xxxxxxx> wrote: