Acoustic characteristics of nasal and oral flaps

Garai, Luca (2023) Acoustic characteristics of nasal and oral flaps. ALKALMAZOTT NYELVTUDOMÁNY, 2023 (2.klsz). pp. 3-20. ISSN 1587-1061

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Abstract

The study investigates the flapping of intervocalic /t/, /n/, and /nt/ in nonsense words uttered by six North American speakers. The main focus of the experiment is to explore the acoustic properties which distinguish oral [ɾ] and nasal [ɾ˜] flap sounds, and to investigate the effect flaps and preceding vowels have on each other in terms of duration and nasality. The results show that the flapping of /nt/ in nonsense words occurs infrequently, while /t/ is consistently flapped. In terms of consonant duration, oral flaps were found to be shorter than nasal flaps, whereas there was no significant difference in flap nasality based on H1*−H2* values. Preceding vowels were nasalized before nasal flaps but not before oral flaps. The results broaden our understanding of the acoustics of alveolar flap sounds, as well as the appearance of oral and nasal flaps in nonsense words.

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