Public Information

About Audiology

 

Common Terminology

  • Air Conduction Thresholds - The lowest level at which an individual can hear a pure tone stimulus when presented via headphones or insert earphones.
  • Audiogram - A chart that represents an individuals hearing thresholds has two axes representing frequencies and intensity.
  • Audiometer - An electronic piece of equipment used in the assessment of an individuals hearing.
  • Bone Conduction Thresholds - The lowest level at which an individual can hear a pure tone stimulus when presented via a bone conductor normally placed on the mastoid.
  • Conductive Hearing Loss - The hearing loss is located in the outer or middle ear.
  • Cochlea - The sensory part of the ear, contains structures including the inner and outer hair cells.
  • Mild Hearing Loss - Thresholds >25 dBHL to 40 dBHL.
  • Mixed Hearing Loss - The hearing loss is a combination of conductive and sensorineural hearing loss.
  • Moderate Hearing Loss - Thresholds >40 dBHL to 55 dBHL.
  • Moderately Severe Hearing Loss - Thresholds >55 dBHL to 70 dBHL.
  • Severe Hearing Loss - Thresholds >70 dBHL to 90 dBHL.
  • Slight Hearing Loss - Thresholds >15 dBHL to 25 dBHL.
  • Otoacoustic emissions - Sounds of cochlear origin that can be recorded using a microphone in the ear canal.
  • Profound Hearing Loss - Thresholds >90 dBHL
  • Senorineural Hearing Loss - The hearing loss is located at the inner ear or auditory nerve.
  • Tinnitus - The perception of sound in the absence of any external stimuli.
  • Tympanometry - Assesses middle ear function, eardrum mobility and acoustic stapedial reflexes.
website design by indigo