Authors
Lawrence D Rosenblum, Jennifer A Johnson, Helena M Saldana
Publication date
1996/12
Journal
Journal of Speech, Language, and Hearing Research
Volume
39
Issue
6
Pages
1159-1170
Publisher
American Speech-Language-Hearing Association
Description
Seeing a talker's face can improve the perception of speech in noise. There is little known about which characteristics of the face are useful for enhancing the degraded signal. In this study, a point-light technique was employed to help isolate the salient kinematic aspects of a visible articulating face. In this technique, fluorescent dots were arranged on the lips, teeth, tongue, cheeks, and jaw of an actor. The actor was videotaped speaking in the dark, so that when shown to observers, only the moving dots were seen. To test whether these reduced images could contribute to the perception of degraded speech, noise-embedded sentences were dubbed with the point-light images at various signal-to-noise ratios. It was found that these images could significantly improve comprehension for adults with normal hearing and that the images became more effective as participants gained experience with the stimuli. These …
Total citations
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Scholar articles
LD Rosenblum, JA Johnson, HM Saldana - Journal of Speech, Language, and Hearing Research, 1996