The invention relates to an auditory prosthesis device for neural stimulation of a patient's hearing, comprising means for providing an input audio signal, a sound processor for generating a neural stimulation signal from the input audio signal, an implantable stimulation assembly for stimulation of the patient's hearing according to the neural stimulation signal, and a control unit for controlling the sound processor, the control unit being adapted to control at least one parameter used in the generation of the neural stimulation signal from the input audio signal such that, during an adjustment period, the value of the at least one parameter is automatically changed from a first value to a second value as a function of the time having passed since a reference point in time.
