Patent ID: 7697992

Claim:
An implantable cochlear stimulation system, comprising: a signal processer configured to: separate an acoustic signal into a multiplicity of channels, compute a probability for each channel within the multiplicity of channels, obtain a threshold corresponding to a stimulation frame, use said threshold to determine an adjusted amplitude corresponding to one or more channels within said multiplicity of channels, use said adjusted amplitudes to determine said probability corresponding to each of said one or more channels within said multiplicity of channels, provide a random number for each of said one or more channels within said multiplicity of channels, and select a number of channels within said one or more channels for application of one or more stimulation signals during said stimulation frame; and an array of electrodes configured to apply said one or more stimulation signals to a patient via said selected number of channels during said stimulation frame; wherein each of said selected number of channels has a probability that is greater than said random number.