Patent ID: 8285385

Claim:
A method of generating electrode stimulation signals for an implanted electrode array, the method comprising: processing an acoustic audio signal to generate a plurality of band pass signals, each of which represents an associated band of audio frequencies; defining a plurality of macro bands, each of which characterizes a plurality of the band pass signals; processing the macro bands in a sequence of sampling intervals, wherein for each sampling interval the processing includes: i. extracting timing and energy information from each band pass signal to form requested stimulation events, ii. decimating the requested stimulation events to select a maximum energy band pass signal within each macro band, and iii. decimating each selected band pass signal based on a pulse selection inhibition function and preserving temporal and spectral structures of the band pass signals so as to generate stimulation event signals; and weighting the stimulation event signals with a weighting matrix reflecting patient-specific pitch perception characteristics to produce output electrode stimulation signals to the implanted electrode array.