Nowak, P. M. (2006). The role of vowel transitions and frication noise in the perception of Polish sibilants. Journal of Phonetics, 34, 139-152.
Presentation: Sarah
Summary: Angela
In this paper, the author explored the effect of vowel transitions and frication noise in the perception of Polish sibilants. In standard Polish, sibilant fricatives and affricates are of a three-way distinction: dental, retroflex, and alveopalatal. Previous studies have shown that vowel transition is a very strong cue for fricative identification; however, whether vowel transition cue remains salient when it is presented with confronting frication noise cues is not yet fully studied. To answer this question, two experiments were designed accordingly. In the first experiment, the three fricative sibilants were flanked by vowels, from the same or different fricative tokens. Seven splicing conditions were designed. Results showed both significant effects of fricative types and splicing conditions. In addition, dentals, patterned differently from retroflexes and alveopalatals, were unaffected by different conditions. In Experiment 2, only isolated frication noise was presented, and results showed that the identification rate was generally high for all three fricative sibilants. The author thus concluded that native Polish speakers indeed rely on vowel transition cues for fricative sibilant perception. However, the high accuracy of isolated friction identification may suggest a different perception strategy is involved.
Summary: Angela
In this paper, the author explored the effect of vowel transitions and frication noise in the perception of Polish sibilants. In standard Polish, sibilant fricatives and affricates are of a three-way distinction: dental, retroflex, and alveopalatal. Previous studies have shown that vowel transition is a very strong cue for fricative identification; however, whether vowel transition cue remains salient when it is presented with confronting frication noise cues is not yet fully studied. To answer this question, two experiments were designed accordingly. In the first experiment, the three fricative sibilants were flanked by vowels, from the same or different fricative tokens. Seven splicing conditions were designed. Results showed both significant effects of fricative types and splicing conditions. In addition, dentals, patterned differently from retroflexes and alveopalatals, were unaffected by different conditions. In Experiment 2, only isolated frication noise was presented, and results showed that the identification rate was generally high for all three fricative sibilants. The author thus concluded that native Polish speakers indeed rely on vowel transition cues for fricative sibilant perception. However, the high accuracy of isolated friction identification may suggest a different perception strategy is involved.
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