Large scale data acquisition of simultaneous MRI and speech

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Daniel Aalto
  • Olli Aaltonen
  • Risto Pekka Happonen
  • Päivi Jääsaari
  • Atle Kivelä
  • Juha Kuortti
  • Jean Marc Luukinen
  • Jarmo Malinen
  • Tiina Murtola
  • Riitta Parkkola
  • Jani Saunavaara
  • Tero Soukka
  • Martti Vainio

Research units

  • University of Helsinki
  • University of Turku
  • Turku University Hospital
  • Aalto University
  • Tampere University

Abstract

We describe an arrangement for simultaneous recording of speech and vocal tract geometry in patients undergoing surgery involving this area. Experimental design is considered from an articulatory phonetic point of view. The speech signals are recorded with an acoustic-electrical arrangement. The vocal tract is simultaneously imaged with MRI. A MATLAB-based system controls the timing of speech recording and MR image acquisition. The speech signals are cleaned from acoustic MRI noise by an adaptive signal processing algorithm. Finally, a vowel data set from pilot experiments is qualitatively compared both with validation data from the anechoic chamber and with Helmholtz resonances of the vocal tract volume, obtained using FEM.

Details

Original languageEnglish
Pages (from-to)64-75
Number of pages12
JournalApplied Acoustics
Volume83
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

    Research areas

  • Formant analysis, MRI, Noise reduction, Speech production, Speech recording, Vocal tract resonance

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