An Acoustic Comparison of Vowel Systems in Adult- Directed-speech and Child-directed Speech: Evidence from French, English & Japanese
نویسنده
چکیده
This research investigated the role of child-directed speech in the acquisition of vowel systems in a cross-linguistic perspective. In order to determine if vocalic systems are expanded in child-directed speech and if this extension varies crosslinguistically, child-directed speech (CDS) was compared to adult-directed speech (ADS) in three rhythmically different languages: French, English and Japanese. The same short story was successively read by mothers to their infant and to an adult (5 mother-infant dyads per language). In the three languages, mothers tended to produce more opened vowels in CDS than in ADS, resulting in a downward shift of the vowel space on the high-low dimension (F1).
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بررسی برخی ویژگی های آکوستیک گفتار نوزاد مدار در مادران فارسی زبان
Introduction: When adults talk to another person, linguistic characteristics of the listener will also be considered. A clear example of speech changes depending on the listener is maternal or infant directed speech. Infant directed speech is more slowly with longer sentences and pauses at the end of the utterance. Undoubtedly the most distinctive feature of this style of speech is acoustic c...
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