A system and method of generating electrode stimulation signals for an implantedmulti -channel electrode array of a cochlear implant includes processing anacoustic audio signal with a bank of filters. Each filter in the bank of filtersis associated with at least one channel having an electrode. The bank of filtersincludes a first band pass filter that produces a broadband signal b(t) with frequenciesthat substantially cover at least one of a pitch frequency range of 100 Hz to 400Hz and a first format range of 400 Hz - 1000 Hz. At least one electrode associatedwith the first band pass filter is activated with electrode stimulation signalsbased, at least in part, on the broadband signal b(t). The filter bank may includeat least one electrode associated with one or more filters other than the firstband pass filter, the one or more filters producing signals having only higherfrequencies than broadband signal b(t).
