Science Fair Project Encyclopedia
Threshold of pain
In hearing, the Threshold of pain is the sound pressure or sound pressure level beyond which sound becomes unbearable for a human listener. This threshold varies only slightly with frequency.
Different values for the threshold of pain are found in the literature:
| Threshold of pain | ||
| sound pressure level | sound pressure | |
| 120 dBSPL | 20 Pa | |
| 130 dBSPL | 63 Pa | |
| 134 dBSPL | 100 Pa | |
| 137.5 dBSPL | 150 Pa | |
| 140 dBSPL | 200 Pa | |
The volume in acoustics refers to loudness. It is a common term for the amplitude of sound, the sound pressure or the sound pressure level (SPL).
Hearing loss due to loud sound is preventable. The best way to prevent exposure is not to be exposed. Turn your stereo down and stay away from night clubs. Try to live far away from construction areas. Keeping away from loud noises is the best way to prevent hearing loss.
See also
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details