To examine sex differences in persuasiveness, we conducted a meta-analysis of seven studies from our laboratory on reactions to human versus computer-synthesized speech. We tested three hypotheses: (1) people would be more persuaded by human speech than by computer-synthesized speech, (2) women would be slightly more persuaded than men, and (3) the sex difference would be more pronounced for human speech than for synthetic speech. While there was support for the first two hypotheses, there was none for the third. Also, no consistent support was found for a moderating effect of mode of presentation, audio versus video.
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Wearable smart glasses are an emerging technology gaining popularity in the assistive technologies industry. Smart glasses aids typically leverage computer vision and other sensory information to translate the wearer's surrounding into computer-synthesized speech. In this work, we explored the potential of a new technique known as "acoustic touch" to provide a wearable spatial audio solution for assisting people who are blind in finding objects.
View Article and Find Full Text PDFAnimated virtual characters to explore audio-visual speech in controlled and naturalistic environments.
Sci Rep
September 2020
Department of Basic Neurosciences, University of Geneva, Campus Biotech, Chemin des Mines 9, 1202, Geneva, Switzerland.
Natural speech is processed in the brain as a mixture of auditory and visual features. An example of the importance of visual speech is the McGurk effect and related perceptual illusions that result from mismatching auditory and visual syllables. Although the McGurk effect has widely been applied to the exploration of audio-visual speech processing, it relies on isolated syllables, which severely limits the conclusions that can be drawn from the paradigm.
View Article and Find Full Text PDFBackground: We have previously demonstrated that when speech generating devices (SGD) are used as assistive technologies, they are preferred over the users' natural voices.
Objective: We sought to examine whether using SGDs would affect listener's perceptions of hirability of people with complex communication needs.
Methods: In a series of three experiments, participants rated videotaped actors, one using SGD and the other using their natural, mildly dysarthric voice, on (a) a measurement of perceptions of speaker credibility, strength, and informedness and (b) measurements of hirability for jobs coded in terms of skill, verbal ability, and interactivity.
Listeners' preference for computer-synthesized speech over natural speech of people with disabilities.
Rehabil Psychol
August 2014
Marriage and Family Therapy Program, Seton Hill University.
Purpose/objective: There are few controlled experimental studies that examine reactions to people with speech disabilities. We conducted 2 studies designed to examine participants' reactions to persuasive appeals delivered by people with physical disabilities and mild to moderate dysarthria.
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Individual differences in auditory discrimination of spectral shape and speech-identification performance among elderly listeners.
J Acoust Soc Am
February 2006
Department of Speech and Hearing Sciences, Indiana University, Bloomington, Indiana 47405, USA.
Speech-understanding difficulties observed in elderly hearing-impaired listeners are predominantly errors in the recognition of consonants, particularly within consonants that share the same manner of articulation. Spectral shape is an important acoustic cue that serves to distinguish such consonants. The present study examined whether individual differences in speech understanding among elderly hearing-impaired listeners could be explained by individual differences in spectral-shape discrimination ability.
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