The Psychophysics of Speech Perception

Abstract

1 The Relevance of Psychophysics for Speech Perception.- The role of psychophysics in understanding speech perception.- Central and peripheral processes in the perception of speech and nonspeech sounds.- Psychophysics versus specialized processes in speech perception: an alternative perspective.- Speech perception and the role of long-term memory.- Levels of representation of phonemes and bandwidth of spectral-temporal integration.- General discussion of session 1.- 2 Separation of Acoustic Events.- The meaning of duplex perception: sounds as transparant objects.- Perceptual separation of speech from concurrent sounds.- Sound separation and auditory perceptual organization.- On the significance of spectral synchrony for signal detection.- Auditory enhancement in speech perception.- General discussion of session 2.- 3 Dynamic Aspects.- Trading relations, acoustic cue integration, and context effects in speech perception.- Perceptual integration of rise time and silence in affricate/fricative and pluck/bow continua.- Reversal of the rise-time cue in the affricate/fricative contrast: an experiment on the silence of sound.- Possible acoustic bases for the perception of voicing contrasts.- Is there a natural sensitivity at 20ms in relative tone-onset-time continua? A reanalysis of Hirsh's (1959) data.- Auditory constraints on speech perception.- Studies of possible psychoacoustic factors underlying speech perception.- Perception of tone, band, and formant sweeps.- Psychophysical representation of stop consonant and temporal masking in speech.- Effects of stimulus dynamics on frequency discrimination.- Extending the search for a psychophysical basis for dynamic phonetic patterns.- General discussion of session 3.- 4 Timbre (Peripheral Constraints and Central Processes in the Perception of Complex Signals)..- Psychophysics of audio signal processing and the role of pitch in speech..- Does the human auditory system include large scale spectral integration?.- Some aspects of the sound of speech sounds.- Involvement of the critical band in identification, perceived distance, and discrimination of vowels.- Profile analysis and speech perception.- General discussion of session 4.- 5 Physiological Correlates of Speech Perception.- Peripheral auditory processing of speech information: implications from a physiological study of intensity discrimination.- Organization of the cochlear nucleus for information processing.- Changes in the phonemic quality and neural representation of a vowel by alteration of the relative phase of harmonics near F1.- Phase vowels.- Nonlinear responses, in the auditory nerve to vowel-related complex stimuli.- Discussion of physiological correlates of speech perception.- General discussion of session 5.- 6 Primary Speech Percepts.- English and French speech processing: some psycholinguistic investigations.- Units of organization and analysis in the perception of speech.- Implications from infant speech studies on the unit of perception.- General discussion of session 6.- 7 Psychophysics and Speech Perception in the Hearing-Impaired.- Relationship between psychophysical abilities and speech perception for subjects with unilateral and bilateral cochlear hearing impairments.- Speech-reception threshold in a fluctuating background sound and its possible relation to temporal auditory resolution.- Differences in listening strategies between normal and hearing-impaired listeners.- Critical bands in the perception of speech signals by normal and sensorineural hearing loss listeners.- Phase and the hearing-impaired.