Audiometry – the ‘hearing beep test’ – how softly you can hear each pitch
First, you will have Air Conduction Testing which tells us how well you hear when sound has to travel all the way through the outer ear, middle ear, and the inner ear. This is when you wear headphones and press a button every time you hear a beep. We plot the responses to these beeps on a graph called an Audiogram, using X’s for the Left ear and O’s for the Right ear. This tells us your hearing thresholds – the softest sounds you can hear at a range of different pitches.
The further down the graph you see these markings, the worse your hearing is as it indicates we’ve had to turn the volume up for you to just hear it. ‘Normal hearing’ requires all the X’s and O’s to be at the top of the graph, above the 20dB line.
The graph also tells us how well you hear at different pitches, with Low-Frequency bass sounds on the left side of the graph, mid frequencies in the middle and High-Frequency treble sounds on the right side of the graph.