An audiogram is a graph that shows the softest sounds that someone can hear at specific frequencies. High-pitched sounds, for example, a bird singing or a child squealing, have a high frequency. Sounds at low frequencies have a lower pitch, such as a dog barking or the noise of a lawnmower.
During a hearing test, an audiologist plays tones, one frequency at a time. The softest tone that a person can hear at each frequency is marked on the audiogram. The chart below shows where everyday sounds would be on the audiogram.
Along the top of an audiogram, a range of sound frequencies is shown. As you move from left to right on the audiogram, the frequencies increase, which means the tones become higher pitched. On the left side of the audiogram, the loudness of a sound signal is depicted. As you move from top to bottom on the audiogram, the loudness increases.