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Recording speech articulation in dialogue - evaluating a synchronized double electromagnetic articulography setup

  • We demonstrate the workability of an experimental facility that is geared towards the acquisition of articulatory data from a variety of speech styles common in language use, by means of two synchronized electromagnetic articulography (EMA) devices. This approach synthesizes the advantages of real dialogue settings for speech research with a detailed description of the physiological reality of speech production. We describe the facility's method for acquiring synchronized audio streams of two speakers and the system that enables communication among control room technicians, experimenters and participants. Further, we demonstrate the feasibility of the approach by evaluating problems inherent to this specific setup: The first problem is the accuracy of temporal synchronization of the two EMA machines, the second is the severity of electromagnetic interference between the two machines. Our results suggest that the synchronization method used yields an accuracy of approximately 1 ms. Electromagnetic interference was derived from theWe demonstrate the workability of an experimental facility that is geared towards the acquisition of articulatory data from a variety of speech styles common in language use, by means of two synchronized electromagnetic articulography (EMA) devices. This approach synthesizes the advantages of real dialogue settings for speech research with a detailed description of the physiological reality of speech production. We describe the facility's method for acquiring synchronized audio streams of two speakers and the system that enables communication among control room technicians, experimenters and participants. Further, we demonstrate the feasibility of the approach by evaluating problems inherent to this specific setup: The first problem is the accuracy of temporal synchronization of the two EMA machines, the second is the severity of electromagnetic interference between the two machines. Our results suggest that the synchronization method used yields an accuracy of approximately 1 ms. Electromagnetic interference was derived from the complex-valued signal amplitudes. This dependent variable was analyzed as a function of the recording status - i.e. on/off - of the interfering machine's transmitters. The intermachine distance was varied between 1 m and 8.5 m. Results suggest that a distance of approximately 6.5 m is appropriate to achieve data quality comparable to that of single speaker recordings.show moreshow less

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Metadaten
Author:Christian Geng, Alice Turk, James M. Scobbie, Cedric Macmartin, Philip Hoole, Korin Richmond, Alan Wrench, Marianne Pouplier, Ellen Gurman Bard, Ziggy Campbell, Catherine Dickie, Eddie Dubourg, William Hardcastle, Evia Kainada, Simon King, Robin Lickley, Satsuki Nakai, Steve Renals, Kevin White, Ronny Wiegand
DOI:https://doi.org/10.1016/j.wocn.2013.07.002
ISSN:0095-4470 (print)
Parent Title (English):Journal of phonetics
Publisher:Elsevier
Place of publication:London
Document Type:Article
Language:English
Year of first Publication:2013
Year of Completion:2013
Release Date:2017/03/26
Volume:41
Issue:6
Pagenumber:11
First Page:421
Last Page:431
Organizational units:Humanwissenschaftliche Fakultät / Institut für Linguistik / Allgemeine Sprachwissenschaft
Peer Review:Referiert