Personnel Information


Kobayashi Yosuke

Affiliation centers1, etc

Center of Environmental Science and Disaster Mitigation for Advanced Research

The master's program in charge

Division of Information and Electronic Engineering

The department in charge

Department of Information and Electronic Engineering

Job title

Assistant Professor

E-mail Address

E-mail address

Research field 【 display / non-display

  • Perceptual information processing

  • Communication/Network engineering

  • Architectural environment/Equipment

Keywords for Research Field 【 display / non-display

  • Acoustics

  • Speech Information Processing

  • Auditory Information Processing

Graduate school・Graduate course, etc. 【 display / non-display

  • Yamagata University

    2013.03,Doctoral program,Graduate School of Science and Engineering,Electrical Engineering and Informatics,Completed,Japan

Degree 【 display / non-display

  • Doctor of Engineering

Career 【 display / non-display

  • Technical staff. Faculty of Engineering, Yamagata University, Yamagata, Japan

    2013.04.01 ~ 2014.03.31

  • Assistant Professor. Department of Electrical and Computer Engineering, National Institute of Technology, Miyakonojo College, Japan.

    2014.04.01 ~ 2016.03.31

Academic Society 【 display / non-display

  • The Institute of Electronics, Information and Communication Engineers

  • The Acoustical society of Japan

  • The Institute of Electrical Engineers of Japan

  • The Institute of Electrical and Electronics Engineers

  • Information Processing Society of Japan

Academic prize 【 display / non-display

  • 1ビットオーディオコンソーシアム 2008年 技術賞


  • Student Prize

    2013.09.26,Acoustical Society of Japan

  • IEEJ Tohoku section prize

    2014.04.01,IEEJ TOHOKU

  • Young researcher prize

    2015.11.01,IEICE Kyusyu


System development that focuses on speech intelligibility

Purpose of Research

Speech intelligibility estimation method from few samples in noisy conditions

Summary of Research

Assessment of speech intelligibility under noisy conditions requires experimental subjects to listen to and evaluate many sounds. Thus, the burden on subjects is significant, and carrying out large-scale experiments is not easy. For lowering evaluation costs, the number of words on intelligibility evaluation word lists need to be reduced. By using binomial distribution to express intelligibility, conducting experiments with one word per condition is possible for all words whose likelihood of cognition is the same. In this paper, we proposed an estimate method from results of subjective evaluation using only 20 words. The ability of estimator to predict subjective assessment values resulted in the root mean squared error of 0.068 on the overall condition average.

Research Content

Features / Benefits of Research

1.Point of research 2.Research of novelty
3.Primacy of Technology 4.Situation of patent-related

Papers 【 display / non-display

  • A Case Study of Bootstrap Masker Quality Assessment for Speech-Privacy Protection

    Yosuke Kobayashi, Kazuhiro Kondo,Journal of Information Hiding and Multimedia Signal Processing,vol.8,(6),(p.1460 ~ 1469),2017.11

  • Development of Realtime Boot-strap Speech Masking System

    金丸 鈴美, 小林 洋介,IEEJ Transactions on Electronics, Information and Systems,vol.137,(3),(p.549 ~ 550),2017.03

  • Intelligibility estimation from small speech samples under noisy condition

    小林洋介,The Journal of the Acoustical Society of Japan,vol.72,(6),(p.321 ~ 323),2016.06

  • A Speech Intelligibility Estimation Method Using a Non-reference Feature Set

    Toshihiro SAKANO, Yosuke KOBAYASHI, Kazuhiro KONDO,IEICE Transactions on Information and Systems,vol.E98.D,(1),(p.21 ~ 28),2015.01

  • Comparison of Output Devices for Augmented Audio Reality

    Kazuhiro Kondo, Naoya Anazawa, Yosuke Kobayashi,IEICE Transactions on Information and Systems,vol.E97.D,(8),(p.2114 ~ 2123),2014.08

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International conference proceedings 【 display / non-display

  • Semantic Parser for Easy Understandable Speech Broadcasting

    Yosuke Kobayashi, Kosuke Ishikawa, Kengo Ohta and Junichi Kishigami,Proc. The 6th IEEE Global Conference on Consumer Electronics (GCCE 2017),(p.28 ~ 29),2017.10,Nagoya, Japan

  • Listening Difficulty Assessment for Real-time Bootstrap Masking System

    Yosuke Kobayashi and Suzumi Kanemaru,Proc. IEEE The 5th IEEE Global Conference on Consumer Electronics (GCCE 2016),(p.413 ~ 414),2016.10

  • An Ambient Noise Clustering Method for Japanese Speech Intelligibility Estimation

    Yosuke Kobayashi, Kazuhiro Kondo,Proc. 44th International Congress and Exhibition on Noise Control Engineering,2015.08,San Francisco

  • Bootstrap masker generation method for speech masking systems

    Yosuke Kobayashi, Kazuhiro Kondo,Proc. 43th International Congress and Exhibition on Noise Control Engineering,2014.11,Melbourne

  • Single-Ended Estimation of Speech Intelligibility using the ITU P.563 Feature Set

    Toshihiro Sakano, Yosuke Kobayashi and Kazuhiro Kondo,Proc. International Conference of the International Speech Communication Association (Inter-Speech),(p.2031 ~ 2035),2014.09,Singapore

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Editorial and Commentary 【 display / non-display

  • Development of blind intelligibility estimation method for outdoor PA system.

    小林洋介,Sound,(31),(p.6 ~ 9),2016

Research reports 【 display / non-display

  • 三味線演奏の複数センサを用いた計測システムの提案

    柴田傑,小林洋介,角美弥子,人文科学とコンピュータシンポジウム論文集,vol.2017,(p.69 ~ 74),2017.12

  • Development of sensing system for sound field evaluation

    児島悠太,小林洋介,電子情報通信学会技術研究報告EA,vol.117,(138),(p.125 ~ 130),Article Number:EA2017-22,2017.07

  • 発話構文解析を利用した「よく聴こえる」拡声システムの基礎検討

    石川 耕輔 , 太田 健吾, 小林 洋介, 岸上 順一 ,情報処理学会研究報告音楽情報科学(MUS),vol.115,(47),(p.1 ~ 5),2017.06

  • Bootstrap masker generation method for speech privacy protection system

    小林洋介,マツダ財団研究報告書,vol.29,(p.8 ~ 13),2017.06

  • Quality estimation of speech masking system using subjective and objective evaluation scores.

    小林洋介,近藤和弘,電子情報通信学会技術研究報告. EA, 応用音響 ,vol.116,(302),(p.67 ~ 72),Article Number:EA-2016-59,2016.11

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Presentaion at conference, meeting, etc. 【 display / non-display

  • RF法を利用した石狩川下流部の水位予測の研究

    坂本莉子, 中津川誠, 小林洋介, 岡崎亮太,公益財団法人 土木学会北海道支部,平成29年度論文報告集 第74号,(p.B-13),2018.01.27,北海道札幌市

  • 常呂川を事例としたリカレントニューラルネットワークによる水位予測

    山田恒輝, 小林洋介, 中津川誠, 岸上順一,公益財団法人 土木学会北海道支部,平成29年度論文報告集 第74号,(p.B-14),2018.01.27,北海道札幌市

  • ランダムフォレスト法を用いた釧路湿原の植生生育条件の分析

    佐久間寛樹, 中津川誠,小林洋介, 坂本久宣,公益財団法人 土木学会北海道支部,平成29年度論文報告集 第74号,(p.B-14),2018.01.27,北海道札幌市

  • Research of Water Level Prediction for a Continuous Flood due to Typhoons Based on a Machine Learning Method

    Makoto Nakatsugawa, Yosuke Kobayashi, Ryota Okazaki and Yoko Taniguchi,American Geophysical Union FALL MEETING,American Geophysical Union,the 2017 Fall Meeting Program Book,2017.12.11,New Orleans,USA

  • Towards an Education of Spoken and Natural Language Processing using Social Robots


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Class subject in charge 【 display / non-display

  • コンピュータ知能学総合演習


  • 情報工学演習C


  • ユーザセンタードデザイン演習


  • ビジネスシステムデザイン基礎演習


  • コンピュータ知能学実験


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