Dr. Jana Brunner

Dr. Jana Brunner erforscht, wie Sprecherinnen und Sprecher ihre Aussprache an veränderte Bedingungen anpassen — etwa wenn die Stimmproduktion durch künstliche Gaumen oder Auditorische Rückmeldungen gestört wird. Sie untersucht dabei, welche Kombinationen von Zungenbewegung, Kieferposition und anderen artikulatorischen Parametern Menschen nutzen, um trotz Störung die gleiche Lautqualität zu erreichen. Diese Erkenntnisse sind relevant für die Sprachtherapie (z. B. nach Operationen oder bei Sprachstörungen), für die Entwicklung von Spracherkennungssystemen, die robuster gegen individuelle Variabilität werden sollen, und für das Verständnis von Spracherwerb und motorischer Kontrolle. Ihre Methoden verbinden Echtzeit-Bewegungsmessung (Elektromagnetische Artikulographie), akustische Analyse und statistische Auswertungsverfahren.

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• Charakterisierung phonemischer Ziele durch Untersuchung des Adaptionsverhaltens von Sprechern während einer artikulatorischen und akustischen Perturbation

  Quelle ↗

  Förderer: DFG Sachbeihilfe Zeitraum: 04/2016 - 07/2019 Projektleitung: Dr. Jana Brunner

• ADAPTIV: ADaptionsziele bei PerTurbierten FrikatIVen

  Quelle ↗

  Förderer: DFG Sachbeihilfe Zeitraum: 09/2018 - 02/2020 Projektleitung: Dr. Jana Brunner

• On the relationship between palate shape and articulatory behavior

  2009

  The Journal of the Acoustical Society of America · DOI

  In this study the acoustic and articulatory variabilities of speakers with different palate shapes were compared. Since the cross-sectional area of the vocal tract changes less for a slight change in tongue position if the palate is domeshaped than if it is flat, the acoustic variability should be greater for flat palates than for domeshaped ones. Consequently, it can be hypothesized that speakers with flat palates should reduce their articulatory variability in order to keep the acoustic output constant. This hypothesis was tested on 32 speakers recorded via electropalatography (EPG) and acoustics. The articulatory and acoustic variability of some of their vowels and /j/ was measured. Indeed, the results show that the speakers with flat palates reduce their variability in tongue height. There is no such trend in acoustic variability.

• Why Do Glottal Stops and Low Vowels Like Each Other

  2011

  ICPhS

• The Influence of Auditory Acuity on Acoustic Variability and the Use of Motor Equivalence During Adaptation to a Perturbation

  2010

  Journal of Speech Language and Hearing Research · DOI

  PURPOSE: The aim of this study was to relate speakers' auditory acuity for the sibilant contrast, their use of motor equivalent trading relationships in producing the sibilant /∫/, and their produced acoustic distance between the sibilants /s/ and /∫/. Specifically, the study tested the hypotheses that during adaptation to a perturbation of vocal-tract shape, high-acuity speakers use motor equivalence strategies to a greater extent than do low-acuity speakers in order to reach their smaller phonemic goal regions, and that high-acuity speakers produce greater acoustic distance between 2 sibilant phonemes than do low-acuity speakers. METHOD: Articulographic data from 7 German speakers adapting to a perturbation were analyzed for the use of motor equivalence. The speakers' produced acoustic distance between /s/ and /∫/ was calculated. Auditory acuity was assessed for the same speakers. RESULTS: High-acuity speakers used motor equivalence to a greater extent when adapting to a perturbation than did low-acuity speakers. Additionally, high-acuity speakers produced greater acoustic contrasts than did low-acuity-speakers. It was observed that speech rate had an influence on the use of motor equivalence: Slow speakers used motor equivalence to a lesser degree than did fast speakers. CONCLUSION: These results provide support for the mutual interdependence of speech perception and production.