This is an important factor to consider when fitting hearing protectors.
Each individual's pinna puts a distinctive imprint on the acoustic wave traveling into the auditory canal.The dimensions and folds of the pinna cause certain sound frequencies to be amplified and other frequencies to be weakened.Its function is to localize sound sources and direct sound into the ear.The pinna is the visible portion that is generally referred to as "the ear.".
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The National Institute for Occupational Safety and Health (NIOSH) Sound Level Meter App is one tool available to the public to download on mobile iOS devices that measures sound levels in the workplace and provides noise exposure parameters to help reduce occupational noise-induced hearing loss. Experience temporary hearing loss when leaving work.Have to shout to be heard by a coworker an arm's length away.Hear ringing or humming in your ears when you leave work.Noise may be a problem in your workplace if you: These include sound level meters, noise dosimeters, and octave band analyzers. Several sound-measuring instruments are available to measure the noise levels in a workspace. If you need to raise your voice to speak to someone 3 feet away, noise levels might be over 85 decibels. Whether you work at a sports venue, on a tarmac, or operate a jackhammer-hearing loss is preventable. The Center for Disease Control (CDC) estimates that 22 million workers are exposed to potentially damaging noise at work each year.
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