UEDA Yuichi

J-GLOBAL         Last updated: Mar 19, 2019 at 13:38
 
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Name
UEDA Yuichi
Affiliation
Kumamoto University
Job title
Professor
Degree
Doctor of Engineering(Tohoku University)

Research Areas

 
 

Education

 
 
 - 
1980
Graduate School, Division of Engineering, Kumamoto University
 
 
 - 
1978
Faculty of Engineering, Kumamoto University
 

Published Papers

 
Myanmar Speech Classification Using Transfer Learning for Image Classification
Ou Ou Khin, Ye Kyaw Thu, Yoshinori Sagisaka , Tadashi Sakata, Yuichi Ueda
17th Int.Conf. on Computer Applications, ICCA 2019      Feb 2019   [Refereed]
Classification of Myanmar Syllables Sound Using Image Classification Approach
Ou Ou Khin, Ye Kyaw Thu, Tadashi Sakata, Yuichi Ueda
13th Int. Student Conf. on Advanced Science and Technology(ICAST)      Nov 2018
Vocal tract length estimation from the long-term average formant frequencies
Tadashi Sakata, Yuichi Ueda, Akira Watanabe
Proceedings of the 13th Western Pacific Acoustics Conference, SC1/01      Nov 2018   [Refereed]
Optimal Lead Selection Method to Improve Detection Rate of R-R Interval in Multiple-Lead Electrocardiogram
Shun Sakai, Kento Shoji, Toshitaka Yamakawa, Tadashi Sakata, Yuichi Ueda
Proceedings of IEEE LSC 2018, ID3077      Oct 2018   [Refereed]
Robust R-Wave Detection Under Long-Term Measurement Using HRV Sensor System with Automatic Gain Readjustment
Kento Shoji, Toshitaka Yamakawa, Tadashi Sakata, Yuichi Ueda
Proceedings of IEEE LSC 2018, ID3053      Oct 2018   [Refereed]
Evaluating the Improvement Factor of R-Wave Detection Rate after Gain Readjustment
Kento Shoji, Toshitaka Yamakawa, Koichi Fujiwara, Manabu Kano, Miho Miyajima, Tadashi Sakata, Yuichi Ueda
Proceedings of IEEE BHI 2018      Mar 2018   [Refereed]
Optimal Lead Selection Method for Imprving Detection Rate of RRI from Multiple Leads Electrocardiogram
Shun Sakai, Kento Shoji, Toshitaka Yamakawa, Tadashi Sakata, Yuichi Ueda
Proceedings of IEEE BHI 2018      Mar 2018   [Refereed]
音声可視化による口蓋裂術後患者への視覚的フィードバックシステム構築への試み
手塚 征宏, 三浦 尚子, 坂田 聡, 上田 裕市, 中村 典史
日本口蓋裂学会雑誌   41(2) 151-151   Apr 2016
新中須 真奈, 平原 成浩, 坂田 聡, 五味 暁憲, 野添 悦郎, 上田 裕市, 中村 典史
日本口腔外科学会雑誌   62(1) 3-9   Jan 2016
著者等は、音声を客観的に評価し、異常音声の状態を示しながら言語治療を効果的に行う方法を確立する目的で、音声可視化システムの開発に取り組んでいる。本システムの概要は、声道の共鳴周波数を表わすホルマント周波数を色情報に変換することで、母音の音韻性を特有の色彩として表示するものであり、個人の構音パターンを可視化でき、音響的特徴の観察だけでなく、構音障害をもつ患者への構音状態の伝達手段や発話訓練における視覚フィードバック手段として利用することが期待できる。今回、顎変形症患者で下顎後方移動術を受けた...
音声視覚化システムを用いた音声解析と言語療法応用への試み(第2報) 顎変形症患者についての検討
新中須 真奈, 平原 成浩, 緒方 祐子, 五味 暁憲, 野添 悦郎, 上田 裕市, 中村 典史
日本口腔科学会雑誌   60(1) 166-167   Jan 2011
Tadashi Sakata, Yuichi Ueda, Akira Watanabe
20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society   5 3856-3860   Dec 2010
Speech features such as formants of vowels uttered by many talkers are considered to form a normal distribution in each phoneme on a feature space. However, those features may apparently show the different dispersions peculiar to the estimation me...
新中須真奈, 平原成浩, 五味暁憲, 上田裕市, 中村典史
日本口腔科学会雑誌   58(4) 304-304   Sep 2009

Misc

 
Yuichi Ueda, Kosuke Tominaga, Tadashi Sakata
Proceedings of Meetings on Acoustics   19 1-6   Jun 2013
Visual feedback of spontaneous speech is effective for articulatory training in deaf children and speech rehabilitation in patients with dysarthria. Particularly, visual representations of vowel formant frequencies have been used directly and indi...
SAKATA Tadashi, UEDA Yuichi, WATANABE Akira
IEICE technical report. Signal processing   112(48) 47-52   May 2012
This study aims to confirm, from a different point of view, the effectiveness of three speech processing methods that we proposed; the inverse filter control (IFC) method for formant estimation, the data reduction method for searching true F1-F2 d...
SAKATA Tadashi, UEDA Yuichi, WATANABE Akira
IEICE technical report. Speech   112(49) 47-52   May 2012
This study aims to confirm, from a different point of view, the effectiveness of three speech processing methods that we proposed; the inverse filter control (IFC) method for formant estimation, the data reduction method for searching true F1-F2 d...
SAKATA Tadashi, UEDA Yuichi, WATANABE Akira
Technical report of IEICE. EA   112(47) 47-52   May 2012
This study aims to confirm, from a different point of view, the effectiveness of three speech processing methods that we proposed; the inverse filter control (IFC) method for formant estimation, the data reduction method for searching true F1-F2 d...
上田 裕市, 坂田 聡, 新中須 真奈
聴覚研究会資料   42(2) 169-174   Mar 2012
UEDA Yuichi, SAKATA Tadashi, SHINNAKASU Mana, HIRAHARA Narihiro, GOMI Akinori
IEICE technical report. Speech   111(471) 39-44   Mar 2012
For diagnosis and rehabilitation based on the specialists' auditory images, we have developed a diagnostic support system which provides the objective information including phoneme distortion, replacement and omission. We proposed the composite pa...
Sakata Tadashi, Ueda Yuichi, Watanabe Akira
The Journal of the Acoustical Society of Japan   67(10) 459-469   Oct 2011
本研究の目的は,逆フィルタ制御(IFC)法によるホルマント推定における零交差情報の有効性を,線形予測分析(LPC)法のスペクトル情報との比較において明らかにすることである。まず,両ホルマント推定法を用いて実音声から得たF_1-F_2ダイアグラム上に真の正規分布と見なされる領域を明示する「データ縮減法」を提案する。我々は,その分布の3σ楕円領域の外側にあるデータをホルマント推定のエラーと定義することにより,両方法のホルマント推定精度を比較する。その結果は,IFC法がLPC法よりも優れているこ...
Tadashi Sakata, Yuichi Ueda, Akira Watanabe
Acoustical Science and Technology   31(2) 195-198   Apr 2010
Yuichi Ueda, Tadashi Sakata, Akira Watanabe
129th Audio Engineering Society Convention 2010   AES129 1-6   Dec 2010
We have been interested in visualizing speech information to observe speech phenomena, analyze speech signal, and substitute the hearing disorders or the speech disorders. In order to realize such speech visualization, we have developed a software...
YAMAO Toshitaka, SHIOTSUKI Tetsuo, UEDA Yuichi
工学・工業教育研究講演会講演論文集   21 148-149   Aug 2009
米倉達郎, 富田翔, 坂田聡, 上田裕市
日本音響学会研究発表会講演論文集(CD-ROM)   2009 ROMBUNNO.3-4-7   Mar 2009
坂田聡, 小糸陽介, 上田裕市
日本音響学会研究発表会講演論文集(CD-ROM)   2009 ROMBUNNO.3-4-5   Mar 2009
上田裕市, 塔本麻友美, 青木敏裕, 坂田聡
電子情報通信学会技術研究報告   108(406(ET2008 73-92)) 25-30   Jan 2009
Yuichi Ueda, Shota Hario, Tadashi Sakata
15th International Congress on Sound and Vibration 2008, ICSV 2008   1 1-8   Dec 2008
We have proposed a speech enhancement method based on formant level control, where a few kinds of formant components are enhanced individually and summed to yield an enhanced speech signal. As one of practical applications, we have been developing...
上田裕市, 坂田聡, 渡邉亮, 池田直光
電子情報通信学会技術研究報告   108(265(SP2008 56-69)) 61-66   Oct 2008
ZHANG Dan, 坂田聡, 上田裕市
電子情報通信学会技術研究報告   108(265(SP2008 56-69)) 67-72   Oct 2008
横田豊和, 岩永拓郎, 坂田聡, 上田裕市
電気関係学会九州支部連合大会講演論文集(CD-ROM)   61st ROMBUNNO.03-2P-04   Sep 2008
UEDA Yuichi
The IEICE transactions on information and systems (Japanese edetion)   90(10) 2950-2955   Oct 2007
抽出ホルマント周波数を中心周波数とするホルマントフィルタの出力として定義されるホルマント成分信号を用いるホルマントレベル推定方式を提案し,ピッチ同期スペクトル上で定義するホルマント基準レベルとの比較評価によりその推定精度を検証する.
Yuichi Ueda, Tomoya Hamakawa, Tadashi Sakata, Syota Hario, Akira Watanabe
Acoustical Science and Technology   28(4) 271-274   Aug 2007
Formant frequencies are very important speech features in the area of speech perception and practical application. Although some formant estimation methods have been proposed previously, those have been inferior in real-time operation. Previously,...
SHIOTSUKI Tetsuo, Ueda Yuichi, FUJIYOSHI Takanori, TSUNEDA Akio, IIDA Masahiro
工学・工業教育研究講演会講演論文集   19 562-563   Aug 2007

Conference Activities & Talks

 
Toshitaka Yamakawa, Toshitaka Yamakawa, Ryunosuke Kinoshita, Koichi Fujiwara, Manabu Kano, Miho Miyajima, Tadashi Sakata, Yuichi Ueda
2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015   19 Feb 2016   
© 2015 Asia-Pacific Signal and Information Processing Association.Analysis of heart rate variability, which is calculated using the R-R intervals (RRI) of electrocardiogram (ECG), provides beneficial information for both clinical and healthcare di...
池田 隆, 上田 裕市, 佐々木 俊介
久留米工業高等専門学校紀要   Apr 2014   
Toshitaka Yamakawa, Toshitaka Yamakawa, Koichi Fujiwara, Miho Miyajima, Erika Abe, Manabu Kano, Yuichi Ueda
2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014   12 Feb 2014   
© 2014 Asia-Pacific Signal and Information Processing Ass.A telemetry system for the measurement of heart rate variability (HRV) has been developed with a low-cost manufacturing process and a low-power consumption design. All the components and fu...
三代 国将, 坂田 聡, 上田 裕市
聴覚研究会資料 = Proceedings of the auditory research meeting   13 Jun 2013   
坂田 聡, 三代 国将, 上田 裕市
聴覚研究会資料 = Proceedings of the auditory research meeting   13 Jun 2013   
MISHIRO Kunimasa, SAKATA Tadashi, UEDA Yuichi
IEICE technical report. Welfare Information technology   6 Jun 2013   
We have developed a real-time system for the purpose of speech training by hearing impaired children, which visualizes the state of articulation and the vowel color image simultaneously. At the same time of converting the auditory images of vowel ...
SAKATA Tadashi, MISHIRO Kunimasa, UEDA Yuichi
IEICE technical report. Speech   6 Jun 2013   
We have proposed a speech training tool using a visual feedback of vowel utterance on a normalized articulation map (hv-plane). By using this method, it is possible to visually understand the positional relationship between the jaw and tongue in a...
MISHIRO Kunimasa, SAKATA Tadashi, UEDA Yuichi
IEICE technical report. Speech   6 Jun 2013   
We have developed a real-time system for the purpose of speech training by hearing impaired children, which visualizes the state of articulation and the vowel color image simultaneously. At the same time of converting the auditory images of vowel ...
SAKATA Tadashi, MISHIRO Kunimasa, UEDA Yuichi
IEICE technical report. Welfare Information technology   6 Jun 2013   
We have proposed a speech training tool using a visual feedback of vowel utterance on a normalized articulation map (hv-plane). By using this method, it is possible to visually understand the positional relationship between the jaw and tongue in a...
Vowel articulatory learning tool using a visual feedback on the normalized articulatory map.
2013   
Restoration of dysarthric speech using a speech compensation system and investigation of vowel speech quality
2012   
Examination of a vowel learning tool using a normalized articulation map and its evaluation method on articulatory stability.
2012   
Estimation of average vocal-tract-length ratios between adult males and females from formant distributions of vowels.
2012   
Speech feature integration and its visualization for a computer-aided diagnosis of the dysarthric speech
2012   
Synthesis of optional vowels based on interconversion of a speakers articulation space and the normalized one and its application to speech rehabilitation
2011   
Development of a vowel speech learning tool using speech feedback on the colored articulation map
2011   
Investigation of a quantitative evaluation and vowel articulation mapping method for a dysarthric diagnosis
2011   
A study of utterance feedback using a vowel visualization method based on an articulation mapping
2011   
Development of a support system for evaluation and training of singing voice -Verification of effect of a training tool-
2011   
Normalization of speech impairment using the articulation modification method in the normalized articulation space
2011   
Investigation of the normalized articulation space for audio-visual real-time feedback of vowel speech and its application
2011   
Quantitative evaluations for speech uttered by patients with jaw deformities
2011   
横田豊和, 岩永拓郎, 坂田聡, 上田裕市
電気関係学会九州支部連合大会講演論文集(CD-ROM)   10 Sep 2009   
富田翔, 米倉達郎, 坂田聡, 上田裕市
電気関係学会九州支部連合大会講演論文集(CD-ROM)   10 Sep 2009   
小糸陽介, 上田裕市, 坂田聡
電気関係学会九州支部連合大会講演論文集(CD-ROM)   10 Sep 2009