This test is similar to the air conduction test. A tuning fork is struck and then held to your mastoid bone. You indicate when you can no longer hear the tone. Next, the other ear is measured in the same manner. This test is also known as a Rinne Test. If you have conductive hearing loss, the amount of time you hear the tone will be longer than the air conduction test. If you have sensorineural hearing loss, the amount of time you hear the tone with the air conduction test will be longer.