[Clinical application of sound therapy in chronic subjective tinnitus].

Chronic subjective tinnitus is an auditory phantom phenomenon perceived by patients only, with no external sound source. It's a common disease and it lacks effective treatments. Sound therapy is an optional treatment which proved to reduce the tinnitus loudness and the negative effects on life. After decades of development, a wide variety of acoustic therapies have been produced, but seldom are likely to thoroughly cure tinnitus. In recent years, some new acoustic treatments based on the hypothesis of mechanisms of tinnitus, are expected to alleviate or even eliminate tinnitus.