Placement of the tuning fork in front of the ear, to test air conduction. The<unk>  is performed by placing a 512 Hz vibrating tuning fork against the patient's mastoid bone and asking the patient to tell you when the sound is no longer heard. Once the patient signals they can't hear it, the still vibrating tuning fork is then placed 1–2 cm from the auditory canal. The patient is then asked again to indicate when they are no longer able to hear the tuning fork.
Rinne test
Bourne test
Reinsch test
Stenger test
Draize test
Spurling's test
Weber test
Hawkins–Kennedy test