MODEL RELEASED. Hearing test. A woman undergoing a hearing test stands in a soundproof room wearing headphones while a technician watches her through a window. The technician is using a machine called an audiometer to produce sounds of varying pitch and loudness in one ear at a time. The sounds de- crease in volume until they become inaudible. The patient responds each time she hears a sound by pressing a button. This type of hearing test,called pure-time audiometry,is used to assess the extent of a patient's hearing loss and to inves- tigate possible causes | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Greim, John |
Taille de l’image : | 3207 px × 4668 px |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property Release : | Non requis |
Restrictions : | - |