Abstract
Twenty-two patients (24 ears) with persistent tinnitus were treated by band noise masking. Masking noise was ranged from 250 Hz to 5,000 Hz divided into 18 sections. Verbal feedback from the patient were taken during a two hour test period. Of the 24 ears, 16 ears showed disappearance of tinnitus and 4 ears reduction of tinnitus after treatment. In four ears, however, tinnitus remained unchanged after the treatment. All patients were not conscious of tinnitus while using the masker, and many mentioned the sense of relief. From these results it can be coucluded that the band noise masker is useful for the treatment of tinnitus.