Shoichi Koyama
Shoichi Koyama
Assistant Professor (Lecturer) at The University of Tokyo
Verified email at ipc.i.u-tokyo.ac.jp - Homepage
TitleCited byYear
Analytical approach to wave field reconstruction filtering in spatio-temporal frequency domain
S Koyama, K Furuya, Y Hiwasaki, Y Haneda
IEEE transactions on audio, speech, and language processing 21 (4), 685-696, 2012
522012
Sparse sound field representation in recording and reproduction for reducing spatial aliasing artifacts
S Koyama, S Shimauchi, H Ohmuro
2014 IEEE International Conference on Acoustics, Speech and Signalá…, 2014
312014
Wave field reconstruction filtering in cylindrical harmonic domain for with-height recording and reproduction
S Koyama, K Furuya, Y Hiwasaki, Y Haneda, Y Suzuki
IEEE/ACM Transactions on Audio, Speech, and Language Processing 22 (10á…, 2014
282014
Analytical approach to transforming filter design for sound field recording and reproduction using circular arrays with a spherical baffle
S Koyama, K Furuya, K Wakayama, S Shimauchi, H Saruwatari
The Journal of the Acoustical Society of America 139 (3), 1024-1036, 2016
222016
Reproducing virtual sound sources in front of a loudspeaker array using inverse wave propagator
S Koyama, K Furuya, Y Hiwasaki, Y Haneda
IEEE transactions on audio, speech, and language processing 20 (6), 1746-1758, 2012
172012
Multichannel blind source separation based on non-negative tensor factorization in wavenumber domain
Y Mitsufuji, S Koyama, H Saruwatari
2016 IEEE International Conference on Acoustics, Speech and Signalá…, 2016
112016
Structured sparse signal models and decomposition algorithm for super-resolution in sound field recording and reproduction
S Koyama, N Murata, H Saruwatari
2015 IEEE International Conference on Acoustics, Speech and Signalá…, 2015
112015
Design of transform filter for reproducing arbitrarily shifted sound field using phase-shift of spatio-temporal frequency
S Koyama, K Furuya, Y Hiwasaki, Y Haneda
2012 IEEE International Conference on Acoustics, Speech and Signalá…, 2012
112012
Design of transform filter for sound field reproduction using microphone array and loudspeaker array
S Koyama, K Furuya, Y Hiwasaki, Y Haneda
2011 IEEE Workshop on Applications of Signal Processing to Audio andá…, 2011
112011
Sparse sound field decomposition for super-resolution in recording and reproduction
S Koyama, N Murata, H Saruwatari
The Journal of the Acoustical Society of America 143 (6), 3780-3795, 2018
102018
Sparse representation using multidimensional mixed-norm penalty with application to sound field decomposition
N Murata, S Koyama, N Takamune, H Saruwatari
IEEE Transactions on Signal Processing 66 (12), 3327-3338, 2018
102018
Sound field recording using distributed microphones based on harmonic analysis of infinite order
N Ueno, S Koyama, H Saruwatari
IEEE Signal Processing Letters 25 (1), 135-139, 2017
102017
Real-time sound field transmission system by using wave field reconstruction filter and its evaluation
S Koyama, K Furuya, H Uematsu, Y Hiwasaki, Y Haneda
IEICE Transactions on Fundamentals of Electronics, Communications andá…, 2014
102014
Mixed-order ambisonics encoding of cylindrical microphone array signals
J Trevino, S Koyama, S Sakamoto, Y Suzuki
Acoustical Science and Technology 35 (3), 174-177, 2014
92014
Listening-area-informed sound field reproduction based on circular harmonic expansion
N Ueno, S Koyama, H Saruwatari
2017 IEEE International Conference on Acoustics, Speech and Signalá…, 2017
82017
Sound field decomposition in reverberant environment using sparse and low-rank signal models
S Koyama, H Saruwatari
2016 IEEE International Conference on Acoustics, Speech and Signalá…, 2016
72016
Posterior residual echo canceling and its complexity reduction in the wave domain
S Emura, S Koyama, K Furuya, Y Haneda
IWAENC 2012; International Workshop on Acoustic Signal Enhancement, 1-4, 2012
72012
Sound field reproduction method in spatio-temporal frequency domain considering directivity of loudspeakers
S Koyama, K Furuya, Y Hiwasaki, Y Haneda
Audio Engineering Society Convention 132, 2012
72012
A theory and experiment of instantaneous wave source localization from a wave distribution on a small region
S Koyama, T Kurihara, S Ando
IEEJ Transactions on Sensors and Micromachines 129, 350-356, 2009
72009
Coding method, decoding method, apparatus, program, and recording medium
M Fukui, S Sasaki, Y Hiwasaki, S Koyama, K Tsutsumi
US Patent 10,269,363, 2019
62019
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