Audiology

Presented by Nader Aldajani, Otologist at KFMC

Audiology Set

• Tympanometry Z

• Pure Tone Audiometry

• Audiogram Interpretation Z

• Speech Audiometry

• Auditory Brain Stem Response

• Otoacoustic Emissions

• Hearing Tests

Definition

• Audiology: The study of sound and hearing.
• Audiometry: The measurement of hearing sensitivity.

Sound

• A form of energy produced by a vibrating object resulting in the sensation of hearing.
• Decibels (dB): Unit of measurement of sound intensity.
• Vibration: To-and-fro motion of an object (e.g., vocal folds, diaphragm on an earphone or loudspeaker, tuning fork).
  • 

Frequency

• Number of cycles per second.
• Humans hear from 20 Hz to 20 kHz.
  • Below 20 Hz, vibrations are felt rather than heard.
• Hertz (Hz): Unit of measurement of frequency.

Units of measurements

• Frequency: Measured in Hertz (Hz).
• Intensity: Measured in Decibels (dB).