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- Path: sparky!uunet!pipex!warwick!uknet!root44!hrc63!mrcu!paj
- From: paj@uk.co.gec-mrc (Paul Johnson)
- Newsgroups: sci.med
- Subject: Re: safe headphone use?
- Message-ID: <2232@snap>
- Date: 19 Nov 92 10:42:51 GMT
- References: <722033136.5064.0@elara.esl.acs.cmu.edu>
- Reply-To: paj@uk.co.gec-mrc (Paul Johnson)
- Organization: GEC-Marconi Research Centre, Great Baddow, UK
- Lines: 21
-
- In article <722033136.5064.0@elara.esl.acs.cmu.edu> kz08+@andrew.cmu.edu (Ken Zuroski) writes:
-
- >I don't like to wear headphones because my ears seem to be especially
- >sensitive to 'em; even if I use them with the volume turned quite low
- >my ears still ache a bit after extended use.
-
- I recall hearing that headphones, particularly the small walkman
- types, set up a resonance cavity between the headphone and eardrum.
- This resonates at ultrasonic frequencies, so you cannot hear it. But
- the energy still damages the ear.
-
- This may be the cause of the problem. On the other hand it could also
- be urban myth.
-
-
- Paul.
- --
- Paul Johnson (paj@gec-mrc.co.uk). | Tel: +44 245 73331 ext 3245
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- These ideas and others like them can be had | GEC-Marconi Research is not
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