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To no one in particular, the RS SPL meter is notoriously slow. When it reads 100db peaks, you're probably getting 110db transients. I'd like to have a system that would do 120db, but I can't afford it. I have to be satisfied with 110db transients for now. As long as its clean, I don't sweat hearing damage. Its the distortion that does the damage.
Quote from: satfrat on 15 Dec 2008, 08:29 pmQuote from: grsimmon on 15 Dec 2008, 08:17 pmFWIWI'm no audiologist, but some of the levels reported so far = permanently damaging your hearing, maybe anything above 85 db (?) At 57 and having worked in a 85db+ machine factory for 35 years, I'm not sweating things at this point in my life. Of course if I could do things over I would have worn ear protection at work and made up for things at home instead of burning the candle at both ends like I have. I would suggest tho if 85+db sound is a concern, stay the hell away from any live rock concert cuz you'll be hearing 110-120db levels there. My ears were ringing for 3 days after a Tom Petty concert back in the 80's. I guess I'd rather live and experience the sensation while I can instead of dying with perfect hearing and never have truely lived the music. My choice. Cheers,RobinActually, our friends at DOSH say you can be exposed to 90 db eight hours per day for a working career and not suffer permanent hearing damage. Beyond that, it's time weighted. For example, you can be exposed to 115 db for fifteen minutes, every day, with no ill effects. Or, 105 db for one hour per day. Or 100 db for two hours. Once again, every day for a working career. A car's horn, when close by, is roughly 120 db. Even by DOSH standards you can listen to this for 7.5 minutes per day. What does all of this mean? Rock on!!! As for whether you have damaged hearing or not; can you hear a pin drop? If so, you're doing fine.Have fun,Jerry
Quote from: grsimmon on 15 Dec 2008, 08:17 pmFWIWI'm no audiologist, but some of the levels reported so far = permanently damaging your hearing, maybe anything above 85 db (?) At 57 and having worked in a 85db+ machine factory for 35 years, I'm not sweating things at this point in my life. Of course if I could do things over I would have worn ear protection at work and made up for things at home instead of burning the candle at both ends like I have. I would suggest tho if 85+db sound is a concern, stay the hell away from any live rock concert cuz you'll be hearing 110-120db levels there. My ears were ringing for 3 days after a Tom Petty concert back in the 80's. I guess I'd rather live and experience the sensation while I can instead of dying with perfect hearing and never have truely lived the music. My choice. Cheers,Robin
FWIWI'm no audiologist, but some of the levels reported so far = permanently damaging your hearing, maybe anything above 85 db (?)
Sorry, what's DOSH? Is that like OSHA? For OSHA, the 90 dBA/8 hour = 100% exposure criteria actually allows for 25% of the workforce to acquire a hearing impairment.
DOSH is the Division of Occupational Safety and Health out here in California. 90 db per eight hour day, for a working career, is allowed. What segment of the population has a hearing impairment from non-occupational exposures? Thus the 25% number.Rock On! Jerry
Loud is loud. Go stand next to an undistored jet engine with no hearing protection, or fire off some 44 magnum rounds without hearing protection - you will go deaf quickly and there is zero distortion from these sources.