AKAGI, Masato Professor
School of Information Science,Human Life Design Area
PhD Tokyo Institute of Technology
◆Professional Experience
: NTT Basic Research Laboratories (1984), ATR Auditory and Visual Perception Research Laboratories (1986-1990)
: Associate Professor of School of Information Science at JAIST (1992-1999)
Speech Signal Processing, Modeling of Speech Perception Mechanism of Humans
◆Research Interests
Non-linguistic information in speech
1. Non-linguistic Information 1-1 Singing Voice 1-2 Speaker Indivisuality 1-3 Emotional Speech 1-4 Voice Conversion 1-5 Speech Coding 備考
Noise reduction in speech
2. Noise Reduction 2-1 Microphone Array 2-2 F0 Extraction 2-3 De-reverberation 2-4 Bone-conducted Speech 2-5 Speech Recognition 2-6 DOA
Modeling of "Cocktail-party effect"
3. Cocktail-party Effect Modeling 3-1 Sound Segregation 3-2 Privacy Protection 3-3 Noisy Sound Perception
Modeling of human ear based on psychoacoustics
4. Psychoacoustics 4-1 Auditory Model 4-2 Contextual Effect 4-3 Auditory Filter 4-4 Phase Perception 4-5 Vowel Perception 4-6 Noise Evaluation
Physiological Auditory Modeling
5. Physiological Auditory Modeling
Abnormal speech
6. Abnormal Speech 6-1 Abnormal Speech Perception 6-2 3D Vocal Tract Modeling
Interaction between Perception and Production
7. Interaction between Perception and Production


◆Published Papers
Unsupervised Singing Voice Separation Based on Robust Principal Component Analysis Exploiting Rank-1 Constraint
Feng Li and Masato Akagi
Proc. EUSIPCO2018, Rome, Italy, 1934-1938-, 2018/09/06
A Three-Layer Emotion Perception Model for Valence and Arousal-Based Detection from Multilingual Speech
Xingfeng, Li and Masato Akagi
Proc. InterSpeech2018, Hyderabad, India, 3643-3647-, 2018/09/06
Voice conversion for emotional speech: Rule-based synthesis with degree of emotion controllable in dimensional space
Yawen Xue, Yasuhiro Hamada, and Masato Akagi
Speech Communication, 102, 54-67-, 2018/09/01
Contributions of the glottal source and vocal tract cues to emotional vowel perception in the valence-arousal space
Yongwei Li, Junfeng Li, and Masato Akagi
J. Acoust. Soc. Am., 144, 2, 908-916-, 2018/08/01
Non-parallel Dictionary-based Voice Conversion using Variational Autoencoder with Modulation Spectrum-constrained Training
Ho-Tuan Vu and Akagi Masato
Journal of Signal Processing, 22, 4, 189-192-, 2018/08/01
Effects of spatial cues on detectability of alarm signals in noisy environments, In Principles and applications of spatial hearing (Eds. Suzuki, Y., Brungart, D., Iwaya, Y., Iida, K., Cabrera, D., and Kato, H.)
Kuroda, N., Li, J., Iwaya, Y., Unoki, M., and Akagi, M., World Scientific, 2011
Noise Reduction Based on Microphone Array and Post-Filtering
Junfeng Li, Masato Akagi, VDM Publishing House Ltd. , 2009
◆Conference Activities & Talks
Toward Affective Speech-to-Speech Translation
Akagi, M.
International Conference on Advances in Information and Communication Technology 2016, DOI 10.1007/978-3-319-49073-1 3, Thai Nguyen, Vietnam, 2016/12/13
Comparative Evaluations of Single-channel Speech Enhancement Algorithms on Mandarin and English Speech Intelligibility
李 軍鋒,楊 琳,張 建平,顔 永紅,赤木 正人
ASJ’2009 Fall Meeting, Fukushima, 2009/09
Physiologically-inspired Feature Extraction for Emotion Recognition
周 瑜, 李 軍鋒, 張 建平,顔 永紅,赤木 正人
ASJ’2009 Fall Meeting, Fukushima, 2009/09
Subjective Evaluations of TS-BASE/WF for Speech Enhancement and Sound Localization
李 軍鋒,坂本 修一,本郷 哲,赤木 正人,鈴木 陽一
ASJ’2009 Fall Meeting,, Fukushima, 2009/09
Effects of single-channel speech enhancement algorithms on Mandarin speech intelligibility
Lin Yang, Junfeng Li, Jianping Zhang, Yonghong Yan and Masato Akagi
Technical Report of IEICE, Hokkaido, 2009/06

■Teaching Experience

Statistics for Data Analytics, Speech Signal Processing

■Contributions to  Society

◆Academic Society Affiliations
The Acousitcal Society of Japan, The Institute of Electronics, Information and Communication Engineers

■Academic  Awards

・ The 1st place in Singing Synthesis Challenge, InterSpeech2007 , 2007
・ 日本音響学会佐藤論文賞 , Acoustical Society of Japan , 1998
・ 電子情報通信学会論文賞 , IEICE , 1988