Retrospective longitudinal analysis of phonetic and phonological cleft palate speech characteristics

Erika Schulz, Wendy Cohen, Anja Lowit, Lisa Crampin

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In this study, we analysed phonetic and phonological consonant characteristics of cleft palate speech (CPS) at ages 5 and 10 in cleft palate with/without cleft lip (CP±CL) based on Cleft Audit Protocol for Speech – Augmented (CAPS-A) data collected in the Dental Hospital in Glasgow. The nature and extent of CPS characteristics at different ages were investigated. Video-recordings of 42 cleft palate (CP), unilateral cleft lip and palate (UCLP) and bilateral cleft lip and palate (BCLP) boys and girls were analysed based on narrow transcription and automatic PROPH (profile of phonology) of types of articulation features. Results of this study showed that CP±CL children produce a significantly higher number of phonetic CPS characteristics than phonological processes at both ages.
Original languageEnglish
Title of host publicationProceedings of the 18th International Congress of Phonetic Sciences
Editors The Scottish Consortium for ICPhS 2015
Place of PublicationGlasgow
Number of pages4
Publication statusPublished - 10 Aug 2015
Event18th International Congress of Phonetic Sciences - Glasgow, United Kingdom
Duration: 10 Aug 201514 Aug 2015

Publication series

NameICPhS Proceedings
Publisher International Phonetic Association
ISSN (Electronic)241-0669


Conference18th International Congress of Phonetic Sciences
Country/TerritoryUnited Kingdom
Internet address


  • clinical phonetics
  • speech and language therapy
  • cleft palate speech
  • computerised profiling
  • CAPS-A
  • phonological
  • cleft lip


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