In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 146, No. 4_Supplement ( 2019-10-01), p. 2925-2925
Abstract:
It is nearly axiomatic that audiovisual (AV) speech is more intelligible than audio-only (A-only) speech, particularly when the speech is presented in a challenging listening environment, such as in background noise [e.g., MacLeod and Summerfield, Br. J. Audiol., 2 (1987)]. No previous research on audiovisual speech perception has examined the perception of children’s speech. Children may elicit a smaller AV benefit than adults, as their visual articulatory movements are more variable than adults’ [e.g., Smith and Goffman, J. Speech Lang. Hear. Res. 41 (1998)] , and hence are less informative perceptual cues. Alternatively, the overall lower intelligibility of children’s A-only speech might lead them to elicit overall higher AV benefits than adults. To examine this question, we collected developmentally appropriate sentence productions from five, 4-6 year old children, and five sex-matched adults. Ongoing work is examining the intelligibility of these sentences in multitalker babble in A-only and AV conditions in a variety of signal-to-noise ratios, so that we can compare AV benefits for children and adults when A-only intelligibility is matched. Both sentence intelligibility and eye gaze during perception are being measured. Results will help us understand the role of individual-speaker variation on the magnitude of AV benefit.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
2019
detail.hit.zdb_id:
1461063-2
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