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Weak voicing in fricative production

Record type: Article

Understanding of the production mechanisms of voiced fricatives lags significantly behind that of other phonemic categories of speech. This paper presents a new voicing classification criterion to distinguish the voicing in fricatives from that of their contextual vowels in VCV tokens: weak vs strong voicing. The criterion is based on the oral airflow, distinguishing it from previous criteria based jointly on the acoustic and EGG signals. Aerodynamic and EGG recordings of four normal adult speakers (two females and two males), producing a speech corpus of 9 isolated words with the European Portuguese (EP) voiced fricatives /v, z, ?/ in word-initial, -medial and -final position, and the same 9 words embedded in 42 different real EP carrier sentences, were analysed. Fricatives were characterised in terms of oral airflow, fundamental frequency, first formant intensity level and glottal open quotient in absolute terms and relative to the values found in their surrounding vowels. The voicing during fricative production presented properties distinct from the voicing of the contextual vowels, leading to the development of a classification criterion based on the relative amplitude of the oscillations in the oral airflow signal. This contributes to distinguish voicing in fricatives from the modal voicing of the vowels

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Citation

Pinho, C.M.R., Jesus, L.M.T. and Barney, Anna (2012) Weak voicing in fricative production Journal of Phonetics, 40, (5), pp. 625-638. (doi:10.1016/j.wocn.2012.06.002).

More information

e-pub ahead of print date: 7 July 2012
Published date: September 2012
Organisations: Signal Processing & Control Grp

Identifiers

Local EPrints ID: 341114
URI: http://eprints.soton.ac.uk/id/eprint/341114
ISSN: 0095-4470
PURE UUID: 5b6839ed-ade1-4dca-ab6c-17e9ad116cf6
ORCID for Anna Barney: ORCID iD orcid.org/0000-0002-6034-1478

Catalogue record

Date deposited: 16 Jul 2012 08:40
Last modified: 18 Jul 2017 05:38

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Contributors

Author: C.M.R. Pinho
Author: L.M.T. Jesus
Author: Anna Barney ORCID iD

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