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Hearing
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Loss
 “Hearing loss exists when there is diminished
sensitivity to the sounds normally heard. The
term hearing impairment is usually reserved for
people who have relative insensitivity to sound
in the speech frequencies.” The severity of a
hearing loss is categorized according to the
increase in volume above the usual level
necessary before the listener can detect it.
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Don’t Wait Until It’s Too
Late
 Human nature often dictates that we have to learn
from experience and often don’t see to a potential
problem until it’s a reality.
 Hearing Loss is invisible sense ; We can not see the
hearing because of hearing is not visible. It is affect
directly your hearing percentage.
 Don’t wait to the symptoms for protection !
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Things To Know About
Hearing Loss

Hearing loss is a major public health issue that is the third most common
physical condition after arthritis and heart disease.2

Hearing loss can affect people all of ages.
 Depending on the cause ; It can be mild, temporary or permanent.

In age-related hearing loss, known as presbycusis, changes in the inner ear
that happen as you get older cause a slow but steady hearing loss. The
loss may be mild or severe, and it is always permanent.3
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Statistics

About 17 percent of adults in the United States, 36 million, report some
degree of hearing loss.

At age 65, one out of three people has a hearing loss.
 60 percent of the people with hearing loss are either in the work force or
in educational settings.

About 2-3 of every 1,000 children are hard of hearing or deaf.

Estimated that 30 school children per 1,000 have a hearing loss.
Statistic Sources: National Information Center on Deafness and Other
Communication Disorders, National Institutes of Health, National Council on
Aging, and the MarkeTrak VIII Study by Sergei Kochkin, Ph.D.
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Modern World Problem;
Recreational Deafness4
 The modern world seems bent on destroying our
beautifully designed hearing system. “Recreational
deafness’’ is a term solidly embedded in today’s
scientific terminology.
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Modern World Problem;
Recreational Deafness4
 Professional sound mixers working at 110dB levels are
flirting with damaged. Some motorcycles and other offroad vehicles can generate hazardous noise levels. The
very popular portable music players used with
earphones can damage to our ears.
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 “Blindness
cuts us off from things, but
deafness cuts us off from people.” 5
- Helen Keller
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Noise-Induced Hearing Loss
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– Completely Preventable
 A major cause of hearing loss in our society is noise
exposure. Tiny hair cells in the ear are damaged when
assaulted by loud noise. Once those hair cells are
destroyed they cannot be replaced.
 Repeated and lengthy exposure to loud sound –
whether is it music or a jackhammer - will eventually
produce a sensor neural hearing loss.
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Who is Under the Risk
 Musicians

Musicians are particularly at risk. It is their job to listen to the sounds that
they and their group are producing, and these may be as high as 135 dB.
They have no choice to do this as often as daily; this is their career and
their lifestyle.

Musicians earplugs are available that can help. The newest and best
version reduce the sound equally all across the spectrum, from low to
high frequencies. Everything sounds just as good as it did before, only
softer.
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Who is Under the Risk
 “If you’re listening to music at 85dB, your hearing is
safe for eight hours. Then when it goes up by 3 dB, it
cuts the safety time down by half.” So if you consider
that the average nightclub soundsystem is around 106
dB, the maths tells you that your ears are safe in such
an environment for around 4 minutes. And while
hearing protection doesn’t make you immune to the
perils loud sound systems, it increases this
recommended safety time to 2 hours - a vast
improvement...
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Who is Under the Risk
 “People think that tinnitus will never happen to them
or that it is just experienced for a short while when
they have come out from a club” Monika continues,
“and because it goes away after a few hours, they
believe it will never get to the point where it may well
end up with the condition forever. If they do have it
constantly but just in a mild way, they believe that it
will not ever get any worse, it can and does
unfortunately.7
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How to Reduce the Damage to
Hearing from Noise
 You have to raise your voice to be understood by
someone standing nearby.
 The noise hurts your ears
 You don't hear as well as you normally do until several
hours after you get away from the noise.
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Decibel Loudness
Comparison Chart7
 Painful
 150 dB = fireworks at 3 feet
 140 dB = firearms, jet engine
 130 dB = jackhammer
 120 dB = jet plane takeoff, siren
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Decibel Loudness
Comparison Chart
 Extremely Loud
 110 dB = maximum output of some MP3 players,
model airplane, chain saw
 106 dB = gas lawn mower, snow blower
 100 dB = hand drill, pneumatic drill
 90 dB = subway, passing motorcycle
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Decibel Loudness
Comparison Chart
 Very Loud
 80–90 dB = blow-dryer, kitchen blender, food processor
 70 dB = busy traffic, vacuum cleaner, alarm clock
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Decibel Loudness
Comparison Chart
 Faint
 30 dB = whisper, quiet library
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“I have hearing loss. What
Should I do ?’’
 1-)Hearing Aids8
 A hearing aid is an electroacoustic device which
typically fits in or behind the wearer’s ear, and designed
amplify and modulate sound.
 Hearing aids advice by the doctors who has serious
hearing loss. It must use with under medical
supervision.
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“I have hearing loss. What
Should I do ?’’
 2-) Earplugs
 Earplugs have more common usage than hearing aids.
Because it is cheaper and very easy to use. Earplugs
use by musicians, DJs, Music Engineers etc. And also
who wants to prevent loud noise in daily life.
 It decreases the all sound frequencies with the same
measurement below high level to average level.
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Before The Lose Protect
Your Hearing !
 Our sense of hearing is irreplaceable. Therefore, the
hearing we now have is all that there is.
 We may use hearing aids, but no hearing aid works as
well as our original ears.
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Bibliography

1-)"Deafness". Encyclopædia Britannica Online. Encyclopædia Britannica Inc.. 2011.
Retrieved 22 February 2012.

2-) Van Buuren,Armin.2010. ‘’Healthy Music.’’ Published on wordpress.com
http://www.auditorysciences.com Auditory Sciences website

3-) Gamori,Ben.2011.’’Tried And Tasted: Proffesional Earplugs.’’
http://www.mixmag.net/tech/tech-features/tried-and-tested%3A-monika

4-) ‘’Critical Listening Skills For Audio Professionals’’. Alton Everest, Everest Inc. 2011 March

5-)Everest,Alton.NICD Fact Sheet: Noise-Induced Hearing Loss Publication No. 08-4233
Updated December 2008
http://www.nidcd.nih.gov/staticresources/health/hearing/NoiseInducedHearingLoss.pdf

6-)National Information Center on Deafness and Other Communication Disorders, National
Institutes of Health, National Council on Aging, and the MarkeTrak VIII Study by Sergei
Kochkin, Ph.D.http://www.hearingloss.org/content/basic-facts-about-hearing-loss

Pictures:
1-) http://www.mixmag.net/tech/tech-features/tried-and-tested%3A-monika
2-) http://www.hearingloss.org/content/basic-facts-about-hearing-loss
3-) http://kidshealth.org/kid/health_problems/sight/hearing_impairment.html
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