A hearing test, also known as an audiogram, is usually carried out by an ENT specialist to check hearing ability. The process begins with an examination of the outer ear and the ear canal. You will then put on headphones and be exposed to a series of sounds of different frequencies and volumes. You will be prompted to show a reaction when you hear a sound. In some cases, a bone conduction test can be performed, in which a vibration device is placed behind the ear to measure the inner ear’s response to vibrations. The results of the test are presented in an audiogram.