MODEL RELEASED. Hearing test. A young boy wearing headphones undergoing a hearing test. The machine on the right is called an audiometer. It is designed to produce sounds of varying pitch and loudness in one ear at a time. The sounds decrease in volume until they become inaudible. The person being tested responds each time they hear a sound by making a signal (such as raising the hand). Hearing tests are performed as part of a routine assessment of child development. This type of hearing test,called pure-tone audiometry,is often used to assess the extent of a person's hearing loss and to investigate possible causes | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / CC Studio |
Taille de l’image : | 3529 px × 3503 px |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property Release : | Non requis |
Restrictions : | - |