1 / 17

C. Fougeron*, L. Crevier-Buchman*, C. Fredouille°, A. Ghio^, C. Meunier^,

C. Fougeron*, L. Crevier-Buchman*, C. Fredouille°, A. Ghio^, C. Meunier^, C. Chevrie-Muller, J.-F. Bonastre°, A. Colazo-Simon, C. Delooze, D. Duez^, C. Gendrot*, T. Legou^, N. Lévêque*, C. Pillot-Loiseau*, S. Pinto^, G. Pouchoulin°, D. Robert^, J. Vaissiere*, F. Viallet^, C. Vincent*

kin
Download Presentation

C. Fougeron*, L. Crevier-Buchman*, C. Fredouille°, A. Ghio^, C. Meunier^,

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. C. Fougeron*, L. Crevier-Buchman*, C. Fredouille°, A. Ghio^, C. Meunier^, C. Chevrie-Muller, J.-F. Bonastre°, A. Colazo-Simon, C. Delooze, D. Duez^, C. Gendrot*, T. Legou^, N. Lévêque*, C. Pillot-Loiseau*, S. Pinto^, G. Pouchoulin°, D. Robert^, J. Vaissiere*, F. Viallet^, C. Vincent* * Lab. de Phonétique et Phonologie, UMR 7018 CNRS-Paris3/Sorbonne Nouvelle, Paris ° Université d'Avignon, CERI/LIA, Avignon ^ Lab. Parole et Langage, UMR 6057 CNRS Aix-Marseille Univ., Aix-en-Provence The DesPho-APaDy Project: Developing an Acoustic-phonetic Characterizationof Dysarthric Speech in French http://despho-apady.univ-avignon.fr/

  2. Fougeron et al.: The DesPho-APaDy Project, LREC 2010 What is Dysarthria? • Neurologically-based speech disturbances resulting from damage to the central and/or peripheral nervous system that impair the transmission of neural messages to the muscles involved in speech production • Deficit in the motor execution at any level of speech production: • respiratory • phonatory • supralaryngeal (velopharyngeal and orofacial) • Requires the consideration of multiple speech parameters

  3. Rationale and Objectives of the Project - To constitute a searchable speech database of French dysarthric patients: 1. for the preservation of existing databases 2. for the need of the acoustic description - To provide a systematic, quantified acoustic description of the speech patterns of French dysarthric speakers 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 3

  4. The Multiple-Field Query Database:Why? • Storage and organization of digitized dysarthric speech corpora (acoustic and physiological data) and associated patients’ clinical information • Accessibility (for selected and protected use) through multiple-field queries (M/F, age, on/off stimulation,…) 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 4

  5. The Multiple-Field Query Database:Which data? The CCM (Claude Chevrie-Muller) Corpus recorded over the last 30 years, ~1000 hours of disordered speech, 5000 patients – adults and children * 860 patients classified according to their neurological diagnosis * 60 control speakers Data recorded Sound, EGG (ElectroGlottoGraph) 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 5

  6. The Multiple-Field Query Database:Which data? • The ANH (Aix-Neurology-Hospital) Corpus recorded for the past 15 years: * 990 patients, * 160 control speakers Data recorded Sound, aerodynamic. EVA2 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 6

  7. The Multiple-Field Query Database:How? • Getting the audio files: • Digitization of the analog 1/4” audio tapes • speed change during each recording session • “real time” auditory control of the recording • Problems encountered: poor quality recordings, some tapes in bad condition • Transfer of DAT tapes • To date, data from 180 patients have been digitized (analog tapes), 94 have been captured from DAT • Segmentation per patient and per speech task (idem for the control population) • Data were renamed for anonymous storage 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 7

  8. The Multiple-Field Query Database:How? • Designing the database: • Choice of a relational model to structure the data • Definition of a set of objects, their attributes and the relation between them, related to the clinical environment • Refinement by confronting the relational data model with empirical and “real” clinical data • Developing the query interface: • Basic sociolinguistic information • Clinical information • Recording session information 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 8

  9. Dysarthric Speech in French: Dimensions to be considered when dealing with dysarthria • Various parameters can be affected… • phonation • articulation • timing/rhythm • prosody • fluence… • Need of appropriate and sufficiently large quantities of speech data, homogenous in quality, and sufficiently documented by clinical information on the patient 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 9

  10. Dysarthric Speech in FrenchMethods • Methods and analysis procedures based on both phonetics and speech engineering approaches • Manual analysis (by human experts) of the acoustic properties of the productions • Automatic acoustic analysis of speech signals • Continuous back and forth between these two techniques should gain from the potential of both approaches 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 10

  11. Dysarthric Speech in French:Selection of Patients (Acoustic Study) • Focus on neurophysiologic alterations of 3 neurologic systems: • Pyramidal system: ALS dysarthria (30 patients) • Cerebellar system: ataxic dysarthria (30 patients) • Extrapyramidal system: Parkinsonian dysarthria (30 patients from the ANH corpus) • Selection based on: • The clinical information, (the certainty of the diagnosis, the ongoing treatment, patient demographics) • The severity of the dysarthria (work on dysarthria with relatively intelligible speech) 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 11

  12. Dysarthric Speech in French:Pre-Processing of the Audio Files • In order to be able to perform both the manual and automatic acoustic analyses, Need of: • Orthographic transcriptions • Automatic text-constrained phonetic alignment 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 12

  13. Pre-Processing of the Audio Files:Orthographic TranscriptionsAutomatic Alignment 1. Orthographic transcriptions <s> [ext] *vu* *puve* *i* *ale* [ext]*alOR* Mr Seguin n'avait jamais eu de bonheur avec ses Each speech production which differs from the original text was annotated using the SAMPA phonetic alphabet 2. Automatic text-constrained phonetic alignment 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 13

  14. Dysarthric Speech in French:Automatic Phonetic Alignment • Evaluation of the automatic phonetic alignment comparing the production of phonemic labels and the boundaries annotated by two phoneticians 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 14

  15. Dysarthric Speech in French:Automatic Phonetic Alignment Results: When comparing segment time boundaries produced manually and automatically, a shift above 20ms is observed: 17% of control speakers, 24% of moderate dysarthric patients 56% of severe dysarthric patients But strong agreement (manual/automatic) for spectral measurements 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 15

  16. Conclusions/Perspectives Encouraging results for clinical research on speech disorders and speech science. Observing type and range of variations due to motor control deficit can help for a comprehensive model of speech variation for normal speakers. A better understanding of the variations that permit to consider a dysarthric speech as deviant could provide insights to the boundary between normal and pathological speech. 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 16

  17. Acknowledgments Funded by the ANR BLAN08-0125 of the French National Research Agency We deeply thank P. Clément, A. Nurenberg and O. Panseri who are also collaborating to this project For further information, please visit: http://despho-apady.univ-avignon.fr 2010-05-20 Fougeron et al.: The DesPho-APaDy Project, LREC 2010 17

More Related