Cochlear implant coding with stochastic beamforming and suprathreshold stochastic resonance

Cochlear implants are prosthetic devices used to provide hearing to people who would otherwise be profoundly deaf. The deliberate addition of noise to the electrode signals can in principle increase the amount of information transmitted via an effect termed suprathreshold stochastic resonance (SSR). However, for SSR to occur the noise must be added in such a way so as to achieve, at least partial, independent stochastic activity across the nerve fibre population.

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