10P-D-3 NIRSによる合成音声の客観評価に向けて(D会場 一般講演)  [in Japanese] 10P-D-3 Survey on NIRS Measurements for Evaluation of Synthesized Speeches  [in Japanese]

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    • 中野 正博 NAKANO Masahiro
    • 産業医科大学・産業保健学部・人間情報科学 Dept. of Physics & Information Science, University of Occupational and Environmental Health
    • 行正 徹 YUKIMASA Toru
    • 産業医科大学・医学部・心理学 Department of Psychology, University of Occupational and Environmental Health


This document is a summary of literatures [12, 17, 18, 19, 22, 23]. We have a highly interest in near-infrared spectroscopy (NIRS) method or optical topography (OT) of multiple measurements with following five advantages : (i) completely non-invasive measurements with a brief start-up, (ii) a bedside equipment with silent operation and continuous monitoring, (iii) hemodynamic observation in the cerebral association cortices, (iv) high flexibility in an experimental design because of tolerance for artifacts, and (v) low running costs without addition of supplies. We are planning to measure cerebral blood volume (CBV) change in the auditory association cortices, which are closely related to linguistic ability, because many neuroimaging studies with spatial resolution have commonly reported the left dominance of cerebral blood flow (CBF) and/or blood oxygenation level dependent (BOLD) contrast during language-oriented tasks or even a simple listening to speeches. Various synthesized speeches may reveal what structure in waveforms plays an essential role in the neurophysiological speech recognition by means of a semi-quantified index of lateral oxygenation.


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