Improving spectral resolution in cochlear implants is key to improving performance in difficult
listening conditions (eg speech in noise, music, etc.). Current focusing might reduce channel
interaction, thereby increasing spectral resolution. Previous studies have shown that
combining current steering and current focusing reduces spread of excitation and improves
virtual channel discrimination in a single-channel context. It is unclear whether the single-
channel benefits from current focusing extend to a multi-channel context, in which the …