Since the 1980s, enormous theoretical and technical changes have occurred in research on the perception of speech. From its origin in psychophysical assessment of basic phonetic attributes, the research has broadened in scope to encompass multisensory speech perception; speech perception with sensory prostheses and cognitive supplementation; speech perception across the life cycle; speech perception in neuropathological disorders; the perception of nested linguistic attributes from fine to coarse grain; and the concurrent perception of linguistic paralinguistic and indexical attributes. This efflorescence of topical concerns has spurred theoretical developments, and a variety of perspectives exists for explaining and modelling speech perception in its various manifestations. This book provides a timely sounding of the research community, offering the reader a summary collection of technical and theoretical accomplishments and challenges across this vital field of research on language.