Perceptual aspects of a three-dimensional vowel space

This dissertation examines the auditory-perceptual theory of speech perception and the concept and validity of perceptual target zones for vowels.

Evaluation of multiple speech processing combinations in the Cochlear Nucleus 5 cochlear implant system using R-Space simulation

Difficulty understanding speech in the presence of background noise is a common report among cochlear implant recipients. The purpose of this research is to evaluate speech processing options currently available in the Cochlear Nucleus 5 sound processor to determine the best option for improving speech recognition in noise.