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Circles and crosses plotting hearing loss by ear and frequency.
Also known as: Hearing test chart, Pure tone audiogram
An audiogram plots hearing threshold against frequency, with circles for the right ear and crosses for the left. The vertical axis runs downwards for worse hearing, so a chart that looks like a descending line is describing loss increasing with frequency.
Plots hearing threshold against frequency, using circles for the right ear and crosses for the left.
Contexts: Medicine
Runs its vertical axis downwards for increasing loss, so a line falling to the right describes hearing that worsens at higher frequencies.
Contexts: Medicine
Uses different symbols again for bone conduction, which distinguishes conductive from sensorineural loss by the gap between the two sets of marks.
Contexts: Medicine
A grid with small circles and crosses plotted across it, joined by lines, with numerals along both axes.