Abstract
Understanding speech acoustics in an era of extreme cue-integration: Multi-dimensional phonetics reveals individual differences in fricative production
The Journal of the Acoustical Society of America, Vol.132(3), pp.2000-2000
09/2012
DOI: 10.1121/1.4755399
Abstract
Phonological features are indicated by many acoustic cues (Lisker, 1986). Listeners must thus combine multiple cues to recognize speech (Nearey, 1990). A recent survey of cues to English fricatives identified 24 distinct, useful cues (McMurray & Jongman, 2011). This multi-dimensional nature of speech raises methodological challenges: cues do not contribute equally, and multiple cues contribute to the same phonetic features (e.g. voicing). We offer a solution, using McMurray and Jongman’s (2011) fricative database as a test. We used a logistic regression to predict the fricatives using measurements of 24 cues. We then sum the product of each cue value and its weight from the regression to determine the strength of the evidence for a given feature/phoneme (e.g. degree of “f-ness” vs. “v-ness”) for each token. By computing this for different subsets of cues, we can measure how classes of cues work in tandem. We illustrate this by examining the relative contribution of cues within the frication and those within the vocoid, as well as spectral and temporal cues, to show individual differences in fricative productions. These analyses offer a straightforward approach to conceptualizing speech perception in high multi-dimensional space, while also giving insights on the production of English fricatives.
Details
- Title: Subtitle
- Understanding speech acoustics in an era of extreme cue-integration: Multi-dimensional phonetics reveals individual differences in fricative production
- Creators
- Ariane E RhoneKeith S ApfelbaumBob McMurray
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.132(3), pp.2000-2000
- DOI
- 10.1121/1.4755399
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Language
- English
- Date published
- 09/2012
- Academic Unit
- Neurosurgery; Communication Sciences and Disorders; Iowa Neuroscience Institute; Otolaryngology; Psychological and Brain Sciences; Linguistics
- Record Identifier
- 9984071755802771
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