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The outer ear


The airborne sound is picked up by the external constructs of the outer ear and transferred through the external auditory meatus to the tympanic membrane. The sound pressure at the tympanic membrane is amplified by acoustic resonance phenomena in the outer ear.




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Magnus Johansson, Peltor AB







 THE AUDITORY SYSTEM

  How does sound occur
  The auditory system 
  The outer ear 
  The middle ear
  The inner ear
  Hearing
  Exposure to noise 
  Hearing impairment
  The concept of equal energy
  How to measure noise levels
  Choose right hearing protection
  Do not over attenuate
  Noise regulations