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    Recording speech articulation in dialogue: Evaluating a synchronized double Electromagnetic Articulography setup

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    geng_et_al_2013_ESPF_dual_EMA_facility_JPhon.pdf (711.6Kb)
    Date
    2013-08-28
    Author
    Geng, Christian C.
    Turk, Alice
    Scobbie, James M.
    Macmartin, Cedric
    Hoole, Philip
    Richmond, Korin
    Wrench, Alan A.
    Pouplier, Marianne
    Bard, Ellen Gurman
    Campbell, Ziggy
    Dickie, Catherine
    Dubourg, Eddie
    Hardcastle, William J.
    Kainada, Evia
    King, Simon
    Lickley, Robin
    Nakai, Satsuki
    Renals, Steve
    White, Kevin
    Wiegand, Ronny
    Metadata
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    Citation
    Geng, C., Turk, A., Scobbie, J., Macmartin, C., Hoole, P., Richmond, K., Wrench, A., Pouplier, M., Bard, E., Campbell, Z., Dickie, C., Dubourg, E., Hardcastle, W., Kainada, E., King, S., Lickley, R., Nakai, S., Renals, S., White, K. & Wiegand, R. (2013) Recording speech articulation in dialogue: Evaluating a synchronized double Electromagnetic Articulography setup. Journal of Phonetics, 41 (6), pp. 421-431.
    Abstract
    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 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.
    Official URL
    http://dx.doi.org/10.1016/j.wocn.2013.07.002
    URI
    https://eresearch.qmu.ac.uk/handle/20.500.12289/3205
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