- Jan 14, 2009
Well I had my hearing test done yesterday and so far I have to say it was the easiest of al...
Audiology
Information, Symptoms, Treatments and Resources
What is Audiology?
An audiology exam tests your ability to hear sounds. Sounds vary according to the intensity (volume or loudness) and the tone (the speed of sound wave vibrations).
Hearing occurs when sound waves move to the nerves of the inner ear and then the brain. Sound waves can travel to the inner ear by air conduction (through the ear canal, eardrum, and bones of the middle ear) or bone conduction (through the bones around and behind the ear).
INTENSITY of sound is measured in decibels (dB):
- A whisper is about 20 dB
- Loud music (some concerts) is around 80 to 120 dB
- A jet engine is about 140 to 180 dB
Usually, sounds greater than 85 dB can cause hearing loss in a few hours. Louder sounds can cause immediate pain, and hearing loss can develop in a very short time.
TONE of sound is measured in cycles per second (cps) or Hertz:
- Low bass tones range around 50 to 60 Hz
- Shrill, high-pitched tones range around 10,000 Hz or higher
The normal range of human hearing is about 20 Hz to 20,000 Hz, and some animals can hear up to about 50,000 Hz.
Alternative Names:
Audiometry; Hearing test; Audiography (audiogram)
Posts on Audiology (215)
- Feb 16, 2009
I also have been having a ton of dizziness and lightheadedness too, headaches bad among oth...
My doctor told me that my middle ear is perfectly fine--no ear infection or redness, etc. H...
- Jan 05, 2008
Can anyone tell me if a CT Scan of the ears will show arthritis? (By the TMJ joints). I had...
- Nov 23, 2008
Can anyone help - have had stuffy fullness in my ears for 3-4 years. audiology report show ...
Can having chronic pressure in the middle ear affect the results of an audiology exam that ...
I am a 48 year old female. I have a history of classical migraines. I have been experiencin...
Hi, I am 26 year old male, suffering form constant tinnitus since one month, ringing in ear...
My son is going on 3 years old he is always holding his ears, and is always say what i dont...
- Nov 27, 2008
I have a loss of balance when I turn my head quickly and also when I walk. I walk with a s...
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