Abstract: Approaches are described for fitting a simultaneous stimulation arrangement of a cochlear implant system to an implanted patient. Electrode contacts in an electrode array implanted in a patient cochlea are stimulated with a fitting pattern of stimulation signals. Then current spread decay parameters are determined for patient specific amplitude compensation of the simultaneous stimulation arrangement based on either a psychoacoustic aspect or an objective measurement of patient percept to the fitting pattern.

Abstract: A method is described for generating electrode stimulation signals for an implanted electrode array. An acoustic audio signal is processed to generate band pass signals each representing an associated band of audio frequencies. Stimulation information is extracted from the band pass signals to generate stimulation event signals defining electrode stimulation signals. The stimulation event signals are mapped according to independent channel-specific loudness functions to produce a set of electrode stimulation signals within channel-specific minimum and maximum threshold levels. The electrode stimulation signals are developed into a set of output electrode pulses to the electrodes in the implanted electrode array.

Abstract: Approaches are described for fitting a simultaneous stimulation arrangement of a cochlear implant system to an implanted patient. Electrode contacts in an electrode array implanted in a patient cochlea are stimulated with a fitting pattern of stimulation signals. Then current spread decay parameters are determined for patient specific amplitude compensation of the simultaneous stimulation arrangement based on either a psychoacoustic aspect or an objective measurement of patient percept to the fitting pattern.

Abstract: A channel fitting process is described for a cochlear implant. A check is made for a channel fitting response condition to a stimulation signal, and if the condition is present, a channel operating parameter is set for the current electrode contact based on the channel fitting response condition, and if channel operating parameters have been set for all the electrode contacts, the channel fitting process ends. Otherwise, a next electrode contact is selected, the stimulation level is changed by a channel fitting increment, and if a stimulation level limit has been reached, the channel fitting process ends, or otherwise, the currently selected electrode contact is stimulated with the stimulation signal at the current stimulation level and the channel fitting process repeats.

Abstract: Approaches are described for fitting an implanted cochlear implant electrode array having stimulation electrodes to the implanted patient. A first unfit stimulation electrode is fit to the patient by determining a most comfortable loudness (MCL) value. Then an MCL value is determined for each remaining unfit stimulation electrode starting from an initial fitting current based on current spread characteristics of at least one already fit stimulation electrode.

Abstract: A method is described for generating electrode stimulation signals for an implanted electrode array. An acoustic audio signal is processed to generate band pass signals each representing an associated band of audio frequencies. Stimulation information is extracted from the band pass signals to generate stimulation event signals defining electrode stimulation signals. The stimulation event signals are mapped according to independent channel-specific loudness functions to produce a set of electrode stimulation signals within channel-specific minimum and maximum threshold levels. The electrode stimulation signals are developed into a set of output electrode pulses to the electrodes in the implanted electrode array.

Abstract: A method is described for generating electrode stimulation signals for an implanted electrode array. An acoustic audio signal is processed to generate band pass signals each representing an associated band of audio frequencies. Stimulation information is extracted from the band pass signals to generate stimulation event signals defining electrode stimulation signals. The stimulation event signals are weighted according to independent channel-specific loudness functions to produce a set of electrode stimulation signals within channel-specific minimum and maximum threshold levels. The electrode stimulation signals are developed into a set of output electrode pulses to the electrodes in the implanted electrode array.