Signal processing and system design for tinnitus treatment

This paper presents new ways for diagnosis and treatment of monotonal and multitonal tinnitus. Due to new music theoretical approaches, high-resolution audiograms can be measured and the individual tinnitus frequency of a patient can be determined accurately. New and pioneering processing techniques for phase shift treatment of predominant tinnitus frequencies are presented, and a hand-held device for home therapy were developed together with a new software for both the communication between physician and patient as well the communication between the hand-held device and clinic system. Furthermore some results are presented for modelling noise tinnitus by using pseudo random sequences. After the modelling of the tinnitus signal, noise cancellation techniques can be used for tinnitus compensation.