Calculating Percentage Hearing Loss

dybala at dybala at
Fri Aug 2 17:59:19 EST 1996

Wayne and Louise Ivory (ivory at wrote:
> I work for a mining company in Western Australia.  I have a colleague
> who works in Occupational Health, and is trying to produce some graphs
> and statistics of noise-related hearing loss for our employees.  He
> has an algorithm for binaural and monaural percentage hearing loss,
> but he said it's not good for noise-related figures.  I'm not in the
> field, so forgive me if I'm a bit vague here, but from what I
> understand these algorithms are weighted towards detecting
> low-frequency hearing loss, whereas noise-related hearing loss is more
> concerned with high frequencies.

> We don't have internet access at work yet, so I told him I'd have a
> look at home.  I've been looking on the web for about an hour and a
> half now, but haven't managed to find anything specific enough.

> If somebody could provide an algorithm/program for this, we'd be most
> appreciative.  Please email replies.

> Wayne Ivory
> Western Australia

On my Big List of Audiology Hyperlinks ScottBradley has a
Occupational Hearing Safety page that should take care of you!

Look on my home page listed below under BLAH!

Thank you for your support,
Paul Dybala
dybala at

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