A system for cancelling an internally generated noise includes a processing device disposed on a patient. The processing device includes a sensor configured to record a pulse sound waveform generated by a pulse of the patient and at least one waveform processing circuit configured to output a cancellation sound waveform based on the recorded pulse sound waveform. The system also includes a sound output device coupled to the processing device. The sound output device is configured to output the cancellation sound waveform to cancel or minimize the pulse sound waveform corresponding to the internally generated noise.

Disclosed is an energy transmitting device for use in a system to monitor and treat tinnitus, comprising: a first unit that produces energy for treating said tinnitus; and a second unit that is arranged to secure and fasten said first unit against a skin of said patient, wherein, when in operation, said first unit produces said energy based on a suggested treatment for transmission to said patient through bone conductivity for treating said tinnitus.

Disclosed is a method for characterising tinnitus in a subject using functional near-infrared spectroscopy (fNIRS). The method comprises receiving data comprising fNIRS signals indicative of cortical activity in one or more regions of the subject's brain at a processing device. The received data is processed using the processor device by inputting one or more feature values into a model, where the feature values include one or more features of the received data. The model is configured to provide one or more classification results based on the one or more feature values, the classification results being indicative of at least one characteristic of tinnitus in the subject. Also disclosed is a system for applying the disclosed method.