{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T10:40:23Z","timestamp":1790678423716,"version":"4.1.0"},"reference-count":59,"publisher":"Acoustical Society of America (ASA)","issue":"4","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2019,4,1]]},"abstract":"<jats:p>Speech communication relies on articulatory and acoustic codes shared between speakers and listeners despite inter-individual differences in morphology and idiosyncratic articulatory strategies. This study addresses the long-standing problem of characterizing and modelling speaker-independent articulatory strategies and inter-speaker articulatory variability. It explores a multi-speaker modelling approach based on two levels: statistically-based linear articulatory models, which capture the speaker-specific articulatory variability on the one hand, are in turn controlled by a speaker model, which captures the inter-speaker variability on the other hand. A low dimensionality speaker model is obtained by taking advantage of the inter-speaker correlations between morphology and strategy. To validate this approach, contours of the vocal tract articulators were manually segmented on midsagittal MRI data recorded from 11 French speakers uttering 62 vowels and consonants. Using these contours, multi-speaker models with 14 articulatory components and two morphology and strategy components led to overall variance explanations of 66%\u201369% and root-mean-square errors of 0.36\u20130.38\u2009cm obtained in leave-one-out procedure over the speakers. Results suggest that inter-speaker variability is more related to the morphology than to the idiosyncratic strategies and illustrate the adaptation of the articulatory components to the morphology.<\/jats:p>","DOI":"10.1121\/1.5096631","type":"journal-article","created":{"date-parts":[[2019,4,19]],"date-time":"2019-04-19T16:24:17Z","timestamp":1555691057000},"page":"2149-2170","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":13,"title":["Characterization of inter-speaker articulatory variability: A two-level multi-speaker modelling approach based on MRI data"],"prefix":"10.1121","volume":"145","author":[{"given":"Antoine","family":"Serrurier","sequence":"first","affiliation":[{"name":"Clinic for Phoniatrics, Pedaudiology & Communication Disorders, University Hospital and Medical Faculty of the RWTH Aachen University 1 , Aachen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierre","family":"Badin","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Grenoble Alpes, CNRS, Grenoble INP, GIPSA-lab 2 , Grenoble, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurent","family":"Lamalle","sequence":"additional","affiliation":[{"name":"Inserm US 17\u2014CNRS UMS 3552\u2014 Universit\u00e9 Grenoble Alpes & CHU Grenoble Alpes, UMS IRMaGe 3 , Grenoble, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christiane","family":"Neuschaefer-Rube","sequence":"additional","affiliation":[{"name":"Clinic for Phoniatrics, Pedaudiology & Communication Disorders, University Hospital and Medical Faculty of the RWTH Aachen University 1 , Aachen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2019,4,19]]},"reference":[{"key":"2023072809495520100_c1","doi-asserted-by":"publisher","first-page":"97","DOI":"10.1016\/0167-6393(86)90032-4","article-title":"\u201cLaws\u201d for lips","volume":"5","year":"1986","journal-title":"Speech Commun."},{"key":"2023072809495520100_c2","article-title":"Predicting unseen articulations from multi-speaker articulatory models","year":"2010"},{"key":"2023072809495520100_c3","doi-asserted-by":"publisher","first-page":"40","DOI":"10.1214\/09-SS054","article-title":"A survey of cross-validation procedures for model selection","volume":"4","year":"2010","journal-title":"Stat. 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