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Old 02-21-2005, 10:30 AM
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Rocky Raab Rocky Raab is offline
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Join Date: Aug 2000
Location: Ogden, Utah
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Riff and others...

There IS an "in-between" solution: filtered earplugs.

There is a filter that can be inserted into earplugs that allows sound up to conversational level to pass through, but damps louder sounds down. They don't amplify, but they do allow near-normal hearing plus a decent amount of protection.

They work by what you might call mechanical sound cancellation. The interior channel of the filter reflects sound waves back on themselves to achieve wave cancellation. It works.

If you have custom plugs that you'd like to have filtered, I'll do it for $10 (that's half price, just for HC members). Or I can send you a set of filtered "generic" plugs for $20. Contact me by PM or email. Put "earplug" or "Hunt Chat" in the email Subject line so it doesn't get bounced.

NOTE! Filtered plugs are NOT the same as the so-called "valve" designs which claim to close on sound pressure. Those things do NOT work because they cannot be faster than sound if they are powered by sound waves. The lag time in the valve allows the first -and most damaging- sound wave to get by. Valve plugs are the only dangerous plugs on the market. Do not buy them.
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