STIMULATION D'IMPLANT COCHLÉAIRE AVEC FAIBLE TAUX D'IMPULSIONS, CONJOINTEMENT AVEC UNE REPRÉSENTATION SÉPARÉE DE FRÉQUENCES FONDAMENTALES ET DE DISTINCTIONS VOISÉES/NON VOISÉES
A method is described for generating stimulus signals for an auditory prosthesis system. A high frequency signal conveys higher frequency audio information including exceptionally low rate band-pass envelope characteristics. This high frequency signal represents at least the upper part if not all of the range of frequencies for speech, music, and other sounds that are audible to listeners with normal hearing. A separate low frequency signal is also provided representing lower audio frequency information including periodicity characteristics (voiced/unvoiced or periodic/aperiodic distinctions) and for periodic sounds, fundamental frequency characteristics. The high frequency signal is applied to the auditory system of a patient by an associated high frequency stimulator, and the low frequency signal is applied to the auditory system of the patient by an associated low frequency signal.
