A tinnitus method and device for providing relief to a person suffering from the disturbing effects of tinnitus is described. The method can be implemented entirely in software to spectrally modify an audio signal in accordance with a predetermined masking algorithm which modifies the intensity of the...http://www.google.es/patents/US7520851?utm_source=gb-gplus-sharePatente US7520851 - Tinnitus rehabilitation device and method