How to find out nouns pressure contained by a disco?

I like going to discos and party and am also concert about my audible range. I've heard that the nouns pressure in discos exceeds the on top form level which should be lower that 85 dB. As I'm wondering how come the workers contained by discos don't seem to hold any hearing problem when I speech to them even in a low voice, I wanna find out at which dB the nouns pressure is in discos.
Is within a simple device which can do the job?


Answers:    Sure... buy an SPL meter. There's a relatively cheap one ($49.95) sold at Radio Shack:
http://www.radioshack.com/sm-digital-dis...

This give you a digital readout, in dB(SPL), which is what you want. You may find similar unit at your local music store, or online:
http://www.musiciansfriend.com/navigatio...

I use Hearos when I'm around too much loud music for too long. They offer reusable or disposable models, and surrounded by particular, a few next to a neutral effect on frequency, which is crucial for music, particularly when you're the one playing it.
http://hearos.com/earplugs/products.html

May be smaller number of an issue in a disco situation, but they're still dutiful hearing protection, minus being too transparent.

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