Providing stimulation signals for an implanted auditory prosthesis including receiving first and second sound signals at first and second sound input devices, each of the first and second signals having a signal-to-noise ratio； determining a signal parameter related to said signal-to-noise ratio of each of the first and second signals； selecting one of the first and second signals which has the greater signal-to-noise ratio； and generating stimulation signals for the implanted auditory prosthesis based on said selected sound signal.
