Pink noise: a potential sound therapy for tinnitus

At present, traditional music therapy based on "white noise" is commonly used to treat tinnitus patients. This study aims to apply "pink noise", which has a more balanced frequency distribution than white noise, to the field of tinnitus rehabilitation treatment to study its inhibitory effect on tinnitus. Fractal technology (fractal mathematics) was used to generate semi-repetitive tones as the basic tone of music therapy. This clinical study recruited 43 adult tinnitus patients with varying degrees of hearing loss as the study subjects. All patients received fractal music therapy with hearing aids. The study evaluated the Tinnitus Handicap Inventory (THI) of patients' usage and tested the indicators with paired sample T-tests. The results indicate that "pink noise" is effective in the treatment of tinnitus, and the differences in the scores are statistically significant before and after treatment (P<0.05). In addition, by comparing the tone spectra of "white noise" and "pink noise", we found that the frequency component power of "pink noise" is mainly concentrated in the middle and low frequency range. Its slope is -3 dB/Oct, which means that the frequency decays downwards as the ratio increases. In this study, a tinnitus music therapy based on the "pink noise" tone was developed, which mainly solved the awkward problem of no specific drugs or special tinnitus treatment equipment. At the same time, it helps to accelerate the development of related medical devices and improve the quality of life of tinnitus patients.