写真a

KITAMURA Tatsuya

Position

Professor

Degree

Ph.D (Information Science)(Japan Advanced Institute of Science and Technology)

Research Field

Perceptual information processing

Graduating School 【 display / non-display

  •  
    -
    1992.03

    Yamagata University   Faculty of Engineering   Graduated

Graduate School 【 display / non-display

  •  
    -
    1997.03

    Japan Advanced Institute of Science and Technology  Graduate School, Division of Information Science  Doctor's Course  Completed

Campus Career 【 display / non-display

  • 2012.04
    -
    Now

    KONAN UNIVERSITYFaculty of Intelligence and Informatics   Professor  

  • 2009.04
    -
    2012.03

    KONAN UNIVERSITYFaculty of Intelligence and Informatics   Faculty of Intelligence and Informatics Department of Intelligence and Informatics   Associate Professor  

  • 2004.04
    -
    2007.03

    KONAN UNIVERSITYFaculty of Science and Engineering   Associate Professor  

Association Memberships 【 display / non-display

  • 1992.04
     
     
     

    Acoustical Society of Japan

  • 2013.01
     
     
     

    The Japan Society of Logopedics and Phoniatrics

 

Conference Activities & Talks 【 display / non-display

  • 発話のしにくさに関する意識や実態に関するアンケート調査

    北村達也, 能田由紀子, 吐師道子, 竹本浩典

    聴覚研究会資料  2018.01  -  2018.01 

  • A method of measuring articulatory space using NDI Wave speech research system

    KITAMURA Tatsuya, NOTA Yukiko, HASHI Michiko, HATANO Hiroaki

    IEICE technical report. Speech  2014.11  -  2014.11 

    The Wave speech research system of Northern Digital Inc. is a type of electromagnetic articulograph that can track the position of small sensors placed on the articulator. In the present study, we measured the individual articulatory space of subjects on the basis of the occulusal plane and the shape of the palate. We made a biteplate with four five-degree-of freedom sensors and mounted an impression of the upper teeth and the palate on it, and measured the occulusal plane using it. The xz-plane was defined by the longitudinal and lateral axes of the biteplate and the y-axis was defined as a surface normal of the xz-plane on the mid-sagittal plane. The shape of the palate was also measured by tracing the palate of the impression by a pen-style sensor or palate probe and was mapped into the articulatory space.

  • Effects of Shift of Pitch Frequency on Perception of Speaker Individualities

    KITAMURA Tatsuya, KAWAMOTO Hiroki

    Technical report of IEICE. EA  2013.07  -  2013.07 

    This study investigated effects of the shift of the pitch frequency of sentence speech uttered by five male speakers for perceptual speaker identification. Stimuli used in experiments were re-synthesized speech, of which the pitch frequency was shifted from -6 to +6 semitones in increments of 2 semitones. In the experiments, participants were asked to judge whether the speakers of the stimuli were the same or not. The results showed that the 2-semitone-shift of the pitch frequency does not affect speaker identification. This perception characteristic is different from that for the pitch height of the sentence speech.

  • A study of percepual effects of acoustical characteristics of musical outboard equipments

    NOMA Kazutoshi, KITAMURA Tatsuya

    Technical report of IEICE. EA  2013.07  -  2013.07 

    In music production, it is known that the sound quality can be controlled by passing through musical outboard equipments. However, quantitative survey for acoustical and perceptual effects of the equipments has not been sufficient. To investigate relationship between the acoustical characteristics of the equipments and audio listening, we thus measured the frequency response of two musical outboard equipments. We then made music signals convoluted the acoustical characteristics of one of those equipments. Using the measured music signals, we examined perceptual effects of the acoustical characteristics of that by a semantic differential method. The result showed that the acoustical characteristics of the musical outboard equipment possibly influence on listening music but its influence is small.

  • Similarity of speaker individualities of sentence in ATR speech database set C

    KAWAMOTO Hiroki, KITAMURA Tatsuya

    IEICE technical report. Speech  2013.02  -  2013.02 

    We measured perceptual similarity of speaker individualities for a sentence of twenty male Japanese speakers in ATR speech database set C. Forty participants evaluated perceptual similarity of the sentence of pairs of speakers We obtained inter-speaker distances by a multidimensional scaling analysis on the basis of the results of the perceptual experiments.

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Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2019.04  -  2023.03 

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2018.04  -  2021.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2017.04  -  2020.03 

  • Grant-in-Aid for Exploratory Research

    Project Year: 2016.04  -  2019.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2009.04  -  2012.03 

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