This involves the delivery of pure sound frequencies by both air and bone conduction from 125 to 8000 hertz (cycles per second) at intensities from 0 to 110 decibels (dB). The threshold for sound perception is recorded and charted on a graph. It is possible to differentiate conductive hearing loss from sensorineural hearing loss. Furthermore, by measuring brain stem evoked response, it is possible to perform this test on individuals who cannot cooperate.
Selected hearing test links: