Verbal attribute magnitude estimates of pulse trains acros selectrode places and stimulation rates in cochlear implant listeners
Wiebke Lamping, Sébastien Santurette, Jérémy Marozeau · Technical University of Denmark, DTU Orbit (Technical University of Denmark, DTU) · 2017
For cochlear implant users, temporal and place cue are assumed to vary along two orthogonal perceptual dimensions linked to pitch height and timbre. Here, the effect of electrode place, pulse rate, and amplitude modulation frequency on those perceptual dimensions was investigated. Combinations of different electrode places with differing pulse rates or modulation frequencies were presented to the participants while they were asked to rate pitch height and sound quality using multiple verbal attributes. The results indicate that temporal and place cues induce two perceptual dimensions that can be both linked to pitch and timbre.