Kenta Niwa
Kenta Niwa
NTT Communication Science Laboratories, NTT Computer and Data Science Laboratories
Verified email at lab.ntt.co.jp - Homepage
Title
Cited by
Cited by
Year
Estimating direct-to-reverberant energy ratio using D/R spatial correlation matrix model
Y Hioka, K Niwa, S Sakauchi, K Furuya, Y Haneda
IEEE Transactions on Audio, Speech, and Language Processing 19 (8), 2374-2384, 2011
712011
Underdetermined sound source separation using power spectrum density estimated by combination of directivity gain
Y Hioka, K Furuya, K Kobayashi, K Niwa, Y Haneda
IEEE Transactions on Audio, Speech, and Language Processing 21 (6), 1240-1250, 2013
662013
DNN-based source enhancement self-optimized by reinforcement learning using sound quality measurements
Y Koizumi, K Niwa, Y Hioka, K Kobayashi, Y Haneda
2017 IEEE International Conference on Acoustics, Speech and Signal …, 2017
482017
DNN-based source enhancement to increase objective sound quality assessment score
Y Koizumi, K Niwa, Y Hioka, K Kobayashi, Y Haneda
IEEE/ACM Transactions on Audio, Speech, and Language Processing 26 (10 …, 2018
452018
Post-filter design for speech enhancement in various noisy environments
K Niwa, Y Hioka, K Kobayashi
2014 14th International Workshop on Acoustic Signal Enhancement (IWAENC), 35-39, 2014
362014
Encoding large array signals into a 3D sound field representation for selective listening point audio based on blind source separation
K Niwa, T Nishino, K Takeda
2008 IEEE International Conference on Acoustics, Speech and Signal …, 2008
302008
Sound enhancement method, device, program and recording medium
K Niwa, S Sakauchi, K Furuya, Y Haneda
US Patent 9,191,738, 2015
252015
Pinpoint extraction of distant sound source based on DNN mapping from multiple beamforming outputs to prior SNR
K Niwa, Y Koizumi, T Kawase, K Kobayashi, Y Hioka
2016 IEEE International Conference on Acoustics, Speech and Signal …, 2016
232016
Diffused sensing for sharp directive beamforming
K Niwa, Y Hioka, K Furuya, Y Haneda
IEEE transactions on audio, speech, and language processing 21 (11), 2346-2355, 2013
192013
3DAV integrated system featuring arbitrary listening-point and viewpoint generation
MP Tehrani, K Niwa, N Fukushima, Y Hirano, T Fujii, M Tanimoto, ...
2008 IEEE 10th Workshop on Multimedia Signal Processing, 855-860, 2008
192008
Characteristics of a new methanol synthesis reactor
H Makihara, K Kobayashi, H Horizoe, C Kuwada, K Niwa
171987
PSD estimation in beamspace for estimating direct-to-reverberant ratio from a reverberant speech signal
Y Hioka, K Niwa
arXiv preprint arXiv:1510.08963, 2015
142015
Estimation of direct-to-reverberation energy ratio based on isotropic and homogeneous propagation model
Y Hioka, K Furuya, K Niwa, Y Haneda
IWAENC 2012; International Workshop on Acoustic Signal Enhancement, 1-4, 2012
142012
Estimation of sound source orientation using eigenspace of spatial correlation matrix
K Niwa, Y Hioka, S Sakauchi, K Furuya, Y Haneda
2010 IEEE International Conference on Acoustics, Speech and Signal …, 2010
142010
Application of neural network to source PSD estimation for Wiener filter based array sound source enhancement
T Kawase, K Niwa, K Kobayashi, Y Hioka
2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC), 1-5, 2016
132016
Optimal microphone array observation for clear recording of distant sound sources
K Niwa, Y Hioka, K Kobayashi
IEEE/ACM Transactions on Audio, Speech, and Language Processing 24 (10 …, 2016
132016
Estimating direct-to-reverberant energy ratio based on spatial correlation model segregating direct sound and reverberation
Y Hioka, K Niwa, S Sakauchi, K Furuya, Y Haneda
2010 IEEE International Conference on Acoustics, Speech and Signal …, 2010
132010
Software defined media: Virtualization of audio-visual services
M Tsukada, K Ogawa, M Ikeda, T Sone, K Niwa, S Saito, T Kasuya, ...
2017 IEEE International Conference on Communications (ICC), 1-7, 2017
122017
Informative acoustic feature selection to maximize mutual information for collecting target sources
Y Koizumi, K Niwa, Y Hioka, K Kobayashi, H Ohmuro
IEEE/ACM Transactions on Audio, Speech, and Language Processing 25 (4), 768-779, 2017
102017
New recording application for software defined media
M Ikeda, T Sone, K Niwa, S Saito, M Tsukada, H Esaki
Audio Engineering Society Convention 141, 2016
102016
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Articles 1–20