Comparison Tool

Pick any two of the 9 audiogram signatures and compare them — overlaid on one set of axes to see how their shapes differ, or side by side to read each in full. Each description card links through to the chapter that discusses that pattern.

First audiogramSecond audiogram

Otosclerosis (conductive)

Low-frequency conductive loss with an air–bone gap; bone conduction shows the Carhart notch dipping at 2 kHz.

Normal hearing

Air and bone conduction both within normal limits at every frequency, with no air–bone gap.