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Join Date: Feb 2002
Location: Lawn Guylen, NY
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I don't go to concerts or night clubs nor do I play lots of computer games and I very rarely wear headphones, but I do keep the tv and car stereo up relatively loud. (My excuse for the car stereo is that I often keep the windows open and so I need to counteract the noisy wind.)
Dani the Computer Science Gal
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They have recently discovered that old age has very little to do with hearing loss. It's cumulative damage from exposure to loud noise.
Doctors in the 1940s concluded there was age-related hearing loss, but it is now known that most people were exposed to damaging noises from factory work, steam trains, and firearms. Soldiers in war were especially likely to show hearing loss.
NIOSH recommends that exposure to any sound over 85 dB SPL be limited to short intervals, and that no person be exposed to any sound over 115 dB SPL. The EPA recommends exposure control starting at 70 dB SPL.
Also realize that you might be experiencing a limit from your soundcard or speakers.
I had changed stereo speakers back in the 1970s, and thought I had a sudden hearing loss. I heard up to 22KHz with the old speakers, but up to only 17 KHz with the new ones.
Doctors in the 1940s concluded there was age-related hearing loss, but it is now known that most people were exposed to damaging noises from factory work, steam trains, and firearms. Soldiers in war were especially likely to show hearing loss.
NIOSH recommends that exposure to any sound over 85 dB SPL be limited to short intervals, and that no person be exposed to any sound over 115 dB SPL. The EPA recommends exposure control starting at 70 dB SPL.
Also realize that you might be experiencing a limit from your soundcard or speakers.
I had changed stereo speakers back in the 1970s, and thought I had a sudden hearing loss. I heard up to 22KHz with the old speakers, but up to only 17 KHz with the new ones.
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Join Date: Aug 2005
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I could hear up to 20K but a few lower I couldn't hear such as 13K and 16K.
>> I could hear up to 20K but a few lower I couldn't hear such as 13K and 16K.
That's possibly due to aliasing with your sound card. The sampling theory applies to sound too, right?
That's possibly due to aliasing with your sound card. The sampling theory applies to sound too, right?
Last edited by twomers : Nov 7th, 2007 at 3:04 pm.
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