Effects of aspiration and vowel context on lip and jaw kinematics in Cantonese bilabial plosive production

Tsz Ying Lai, Min Ney Wong, Manwa L. Ng, Eric Tiksang Tong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)


S. Maney & Son Ltd 2015. The present study examined the possible effects of aspiration and vowel context on lip and jaw movements during production of Cantonese bilabial plosives /p/ and /ph/. VCV syllables were randomly produced by 30 adult native Cantonese speakers. Movement of upper lip, lower lip, and jaw during speech production was recorded using electromagnetic articulography. Kinematic analysis of lip and jaw movements during the opening phase of bilabial plosive production revealed a significant aspiration effect, especially on vertical displacement and velocity of the jaw. Such effects were consistent across all vowel contexts. Similarly, a significant aspiration effect was observed in vertical displacement of the lower lip. These findings suggest that muscular force is the main driving force in the production of unaspirated bilabial plosives.
Original languageEnglish
Pages (from-to)212-218
Number of pages7
JournalSpeech, Language and Hearing
Issue number4
Publication statusPublished - 1 Jan 2015
Externally publishedYes


  • Aspiration
  • Bilabial
  • Cantonese
  • Jaw
  • Kinematics
  • Lip
  • Plosive
  • Vowel

ASJC Scopus subject areas

  • Speech and Hearing
  • Otorhinolaryngology
  • Linguistics and Language

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