Pure Tone Audiogram

Pure Tone AudiogramAn audiogram is a means of mapping a hearing loss. It shows how loud and at what pitch a sound must be before a person can hear it. The quietest sound a person can hear is known as their hearing threshold.

Audiometry is used as a tool to assist in the diagnosis of a number of conditions that affect hearing perception, including noise-induced hearing loss. Audiograms may be commissioned as part of a medico-legal case or as part of provision of care.

Audiograms are carried out by our audiologists, Des Robertshaw and Dr Andrea Tarter, using a pure tone audiometer.

To test your hearing, headphones would be placed over your ears and sounds at different volumes and different frequencies would be played to you. You would be asked to press a button each time you heard a sound. Your responses would be recorded on a chart called an audiogram.

The audiogram shows the extent of any hearing loss at the date of the test, whether hearing loss is the same in both ears (bilateral hearing loss) or is restricted to one ear (unilateral hearing loss) and whether there are any features of hearing loss that indicate a particular cause.