Tinnitus examination by an ENT to diagnose treatable conditions like middle ear infection, acoustic neuroma, concussion, otosclerosis, etc. Evaluation of tinnitus will include a hearing test (audiogram), measurement of acoustic parameters of the tinnitus like pitch and loudness, and psychological assessment of comorbid conditions like depression, anxiety, and stress that are associated with severity of the tinnitus. The accepted definition of chronic tinnitus, as compared to normal ear noise experience, is five minutes of ear noise occurring at least twice a week. However, people with chronic tinnitus often experience the noise more frequently than this and can experience it continuously or
Tinnitus masker efficacy of a tinnitus masker may depend on the wearer's capacity to experience "residual inhibition," the temporary suppression of tinnitus in response to particular sound patterns. The mechanism of sound masking can be explained by analogy with light. In a dark room where someone is turning a lamp on and off, the light will be obviously noticeable. However if the overhead lights are turned on, turning on the lamp will no longer be as distracting because it has been "masked". The concept that an external sound could suppress perception of an internal one was first realised clinically in the mid