The Audiogram

Each sound has a certain pitch or frequency. Frequency is measured by the number of waves or cycles that a sound makes in a single second. The scale used to designate cycles per second (cps) is called hertzs (Hz). Loudness of a sound, or intensity, is measured in units called decibels (dB).

An audiogram is a graph that helps illustrate usable hearing and the amount of hearing loss for each ear.

On the audiogram, pitch or frequency of the sounds is charted from left to right (low to high pitch) by numbers at the top of the grid. Loudness or intensity of the sounds is measured from top to bottom
(soft to loud).

The audiologist presents tones one frequency at a time. The softest
tone a person can hear at each frequency is marked on the audiogram.
This is called a hearing threshold.