TITLE

An Evaluation of the Aurora System as a Flesh-Point Tracking Tool for Speech Production Research

AUTHOR(S)
Kröger, Bernd J.; Pouplier, Marianne; Tiede, Mark K.
PUB. DATE
August 2008
SOURCE
Journal of Speech, Language & Hearing Research;Aug2008, Vol. 51 Issue 4, p914
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Purpose: Northern Digital Instruments (NDI; Waterloo, Ontario, Canada) manufactures a commercially available magnetometer device called Aurora that features real-time display of sensor position tracked in 3 dimensions. To test its potential for speech production research, data were collected to assess the measurement accuracy and reliability of the system. Method: First, sensors affixed at a known distance on a rigid ruler were moved systematically through the measurement space. Second, sensors attached to the speech articulators of a human participant were tracked during various speech tasks. Results: In the ruler task, results showed mean distance errors of less than 1 mm, with some sensitivity to location within the measurement field. In the speech tasks, Euclidean distance between jaw-mounted sensors showed comparable accuracy; however, a high incidence of missing samples was observed, positively correlated with sensor velocity. Conclusions: The real-time positional feedback provided by the system makes it potentially useful in speech therapy applications. The overall missing data rate observed during speech tasks makes use of the system in its current form problematic for the quantitative measurement of speech articulator movements; however, NDI is actively working to improve the Aurora system for use in this context.
ACCESSION #
33336136

 

Related Articles

  • ACOUSTIC CHARACTERIZATION OF THE VOICING OF STOP PHONES IN BRAZILIAN PORTUGUESE. Melo, Roberta Michelon; Mota, Helena Bolli; Mezzomo, Carolina Lisbôa; de Castro Brasil, Brunah; Lovatto, Liane; Arzeno, Leonardo // Revista CEFAC;mar/abr2014, Vol. 16 Issue 2, p487 

    Purpose: to investigate and compare the acoustic characteristics of voiceless and voiced plosives in the speech of children with typical phonological development and adults with typical language speech patterns. Method: the study's sample is arranged in two groups - 17 adults and 11 children...

  • Assessment of Single-Word Production for Children under Three Years of Age: Comparison of Children with and without Cleft Palate. Scherer, Nancy J.; Williams, Lynn; Stoel-Gammon, Carol; Kaiser, Ann // International Journal of Otolaryngology;2012, p1 

    Background. This study reports comparative phonological assessment results for children with cleft lip and/or palate (CLP) to typically developing peers using an evaluation tool for early phonological skills. Methods. Children without clefts (NC = noncleft) and 24 children with CLP, ages of...

  • PROTOCOLO DE AVALIAÇÃO DO FRÊNULO DA LÍNGUA. Marchesan, Irene Queiroz // Revista CEFAC;2010, Vol. 12 Issue 6, p977 

    Purpose: to present a lingual frenum protocol with scores. Methods: from a specific evaluation of the lingual frenum used until 2004, it was designed a new protocol with specific clinical history and evaluation. Ten experienced Speech Language Pathologists in Orofacial Myology area used the...

  • Tongue-Palate Contact During Selected Vowels in Normal Speech. Gibbon, Fiona E.; Lee, Alice; Yuen, Ivan // Cleft Palate-Craniofacial Journal;Jul2010, Vol. 47 Issue 4, p405 

    Objective: Previous research using electropalatography has revealed that high vowels are vulnerable to articulation errors in cleft palate speech. The error involves complete tongue-palate contact, which obstructs normal airflow through the mouth and increases nasal airflow. This study used...

  • PHONOLOGICAL CHANGES OBTAINED IN THE TREATMENT BASED ON THE MULTIPLE OPPOSITION APPROACH. Ceron, Marizete Ilha; Keske-Soares, Márcia // Revista CEFAC;Mar-Apr2013, Vol. 15 Issue 2, p314 

    Purpose: to analize the phonological changes resulting from the application of the Multiple Opposition Approach concerning the Percentage of Consonants Correct - Revised (PCC-R), on the number of phonemes that were acquired in the phonological inventory and on the types of generalization....

  • From the Editor. Ricketts, Todd A. // Trends in Amplification;2002, Vol. 6 Issue 3, preceding p81 

    Introduces a paper in the September 2002 issue of "Trends in Amplification." Clinical and laboratory theory behind the Articulation Index and the Speech Transmission Index; Background information on the article's authors.

  • Patient-Reported Outcomes for Acquired Dysarthria. Donovan, Neila J. // Perspectives on Neurophysiology & Neurogenic Speech & Language D;Dec2012, Vol. 22 Issue 4, p152 

    The purpose of this article is to review the state of the art in patient-reported outcome (PRO) development for acquired dysarthria for clinicians and researchers interested in adding the patient's perspective to the information they garner from their standard assessment repertoire. In...

  • Communication Deficits of Children Secondary to Developmental Apraxia of Speech. Enwefa, Stephen; Enwefa, Regina L. // NAAAS & Affiliates Conference Monographs;2010, p965 

    Developmental apraxia of speech (DAS) is used by speech language pathologists to describe those children who exhibit severe articulatory output problems due to difficulty formulating and executing motor plans for speech. Several definitions of DAS focus on the difficulty or inability to carry...

  • How I use electropalatography. Nordberg, Ann; Berg, Elvira; Carlsson, Goran; Lohmander, Anette // Speech & Language Therapy in Practice;Winter2008, p22 

    The article discusses a clinical study which considers the scope of using electropalatography (EPG) in boys with dysarthria and in a man with articulatory dyspraxia. EPG is a technique that records the location and the timing of tongue contacts with the hard palate during continuous speech. It...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics