Specification of cross-modal source information in isolated kinematic displays of speech.

J Acoust Soc Am

Department of Psychology, 5310 North Campus Drive, California State University, Fresno, California 93740, USA.

Published: July 2004

Information about the acoustic properties of a talker's voice is available in optical displays of speech, and vice versa, as evidenced by perceivers' ability to match faces and voices based on vocal identity. The present investigation used point-light displays (PLDs) of visual speech and sinewave replicas of auditory speech in a cross-modal matching task to assess perceivers' ability to match faces and voices under conditions when only isolated kinematic information about vocal tract articulation was available. These stimuli were also used in a word recognition experiment under auditory-alone and audiovisual conditions. The results showed that isolated kinematic displays provide enough information to match the source of an utterance across sensory modalities. Furthermore, isolated kinematic displays can be integrated to yield better word recognition performance under audiovisual conditions than under auditory-alone conditions. The results are discussed in terms of their implications for describing the nature of speech information and current theories of speech perception and spoken word recognition.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3429945PMC
http://dx.doi.org/10.1121/1.1757454DOI Listing

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