Reverberation erases formant peaks in cochlear nucleus firing only when pitch is modulated

Evidence

Based on template contrast calculated from double-vowel responses, we computed a “periodicity-tagged” discharge rate for each vowel of the concurrent-speech mixture (Fig. 5 ). In the across-BF profiles of periodicity-tagged rate, there are peaks and troughs corresponding to the formant structure of each vowel under quiet, anechoic listening conditions. … With reverberation, there are no formant related peaks and troughs remaining in the modulated-F0 case (Fig. 5e ), although a clear formant-related pattern of periodicity-tagged discharge rate remains in the static-F0 case in reverberation (Fig. 5b ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 5059