A new method of synthesizing chaotic music for tinnitus sound therapy

Tinnitus is a phantom auditory perception. An increasing number of people begin to complain that tinnitus bring a lot of negative things to their lives. Tinnitus retraining therapy (TRT) has been used for many years in tinnitus clinics around the world. Two components that are essential for TRT are counselling and sound therapy. Scientific researches show that TRT can relieve tinnitus by some similar and not repetitive music. It is important for us to design such music. We aimed to synthesize music based on chaos theory and musical instrument digital interface (MIDI) files. However, if we only directly map the output of chaotic systems to pitch or rhythm value, there will be some imperfections that we cannot overcome at the same time. So we proposed a new method of synthesizing music for tinnitus therapy. Experiment results show that the music in this paper was not only self-similar, but also no sudden changes. What´s more, the fluctuation of pitch and duration obey 1/f power law. In a word, it can promote recent advances in tinnitus treatment.