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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 26  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
EA, SIP, SP 2019-03-14
15:15
Nagasaki i+Land nagasaki (Nagasaki-shi) Convergence-guaranteed independent positive semidefinite tensor analysis for blind source separation
Kanta Fukushige, Norihiro Takamune (UTokyo), Daichi Kitamura (Kagawa-NICT), Hiroshi Saruwatari (UTokyo), Rintaro Ikeshita, Tomohiro Nakatani (NTT)
This paper focuses on independent positive semidefinite tensor analysis (IPSDTA), which is a technique for over-determin... [more] EA2018-127 SIP2018-133 SP2018-89
pp.167-172
SIP, EA, SP, MI
(Joint) [detail]
2018-03-19
13:00
Okinawa   [Poster Presentation] Intelligibility of speech with additive bubble noise and enhancement under hearing impairment simulation
Narumi Ohashi, Naoko Yomura, Katsuhiko Yamamoto (Wakayama Univ.), Shoko Araki, Keisuke Kinoshita, Tomohiro Nakatani (NTT), Toshio Irino (Wakayama Univ.)
Subjective experiments were performed to develop speech intelligibility (SI) prediction metrics for both hearing-impaire... [more] EA2017-116 SIP2017-125 SP2017-99
pp.87-92
SP, SIP, EA 2017-03-01
16:40
Okinawa Okinawa Industry Support Center [Invited Talk] An Introduction to Example-based Speech Enhancement and Its Improvements
Atsunori Ogawa, Keisuke Kinoshita, Marc Delcroix, Tomohiro Nakatani (NTT)
This paper introduces example-based speech enhancement, which is a promising single-channel approach to cope with highly... [more] EA2016-114 SIP2016-169 SP2016-109
pp.183-188
SP, IPSJ-SLP
(Joint)
2015-07-17
11:10
Nagano Katakura Suwako Hotel [Invited Talk] Aspects of feature extraction in DNN acoustic models
Takuya Yoshioka, Marc Delcroix, Masakiyo Fujimoto, Tomohiro Nakatani (NTT)
Since the advent of acoustic models based on deep neural networks (DNNs), a vast amount of efforts have been made to fur... [more] SP2015-46
pp.61-65
EA 2014-10-24
14:20
Tokyo Central Research Laboratory, Hitachi, Ltd. [Invited Talk] Speech enhancement techniques in multi-speaker spontaneous speech recognition for conversation scene analysis
Shoko Araki, Takaaki Hori, Tomohiro Nakatani (NTT)
This paper illustrates speech enhancement techniques for multi-speaker distant-talk speech recognition, where a conversa... [more] EA2014-25
pp.9-14
SP, IPSJ-MUS 2014-05-24
11:30
Tokyo   [研究紹介] A spectrogram-patch-input DNN model for detection and classification of acoustic events robust to speech overlapping scenarios
Miquel Espi, Masakiyo Fujimoto, Yotaro Kubo, Tomohiro Nakatani (NTT)
This paper presents an acoustic event detection and classification method that learns features from spectrogram patches ... [more] SP2014-17
pp.171-176
EA 2013-10-11
13:30
Kyoto NTT CS Lab. Source number estimation under reverberant and underdetermined conditions based on clustering of source activity sequences
Nobutaka Ito, Ingrid Jafari, Shoko Araki, Tomohiro Nakatani (NTT)
 [more] EA2013-66
pp.17-21
SP, EA, SIP 2013-05-16
10:55
Okayama   Permutation-free clustering-based source separation based on time-varying mixture weights
Nobutaka Ito, Shoko Araki, Tomohiro Nakatani (NTT)
To avoid the permutation problem in clustering-based source separation, we introduce a mixture model with time-varying, ... [more] EA2013-2 SIP2013-2 SP2013-2
pp.7-12
EA 2012-12-14
10:40
Tokyo National Institute of Informatics Under-Determined Audio Source Separation Based on MAP Spectral Estimation Using Log-Spectral Prior
Yasuaki Iwata (Nagoya Univ.), Tomohiro Nakatani, Masakiyo Fujimoto, Takuya Yoshioka (NTT CS Labs), Hirofumi Saito (Nagoya Univ.)
Assuming speech to be non-stationary Gaussian process, maximum likelihood spectral estimation has been studied as an eff... [more] EA2012-114
pp.29-34
EA 2012-10-28
10:30
Toyama USHIDAKE resort (Toyama) [Invited Talk] Dereverberation & reverberation control for speech and music signals and its application -- Making speech clearer and music richer --
Keisuke Kinoshita, Takuya Yoshioka, Tomohiro Nakatani (NTT)
The acoustic signals captured by the distant microphones inevitably contain reverberant components due to reflection fro... [more] EA2012-80
pp.91-96
SP, IPSJ-SLP
(Joint)
2012-07-20
10:00
Yamagata Hotel Takinoyu (Yamagata Pref.) [Invited Talk] Research on Meeting Analysis and Its Perspective
Takaaki Hori, Shoko Araki, Kazuhiro Otsuka, Tomohiro Nakatani, Atsushi Nakamura, Junji Yamato (NTT)
 [more] SP2012-52
pp.13-18
SP, NLC, IPSJ-SLP [detail] 2011-12-20
09:00
Tokyo   Simultaneous application of speaker adaptation and noise mixture model estimation for noise suppression
Masakiyo Fujimoto, Shinji Watanabe, Tomohiro Nakatani (NTT)
In this paper, we propose a joint processing method for a model-based noise suppression that simultaneously achieves spe... [more] NLC2011-46 SP2011-91
pp.113-118
EA 2011-11-18
15:45
Kumamoto Kumamoto Univ. Underdetermined BSS in noisy environments with new analytical update rule for TDOA inference
Takuro Maruyama (Tsukuba Univ), Shoko Araki, Tomohiro Nakatani (NTT), Shigeki Miyabe, Takeshi Yamada, Shoji Makino (Tsukuba Univ), Atsushi Nakamura (NTT)
 [more] EA2011-86
pp.25-30
EA 2011-10-28
14:45
Nagano Faculty of Engineering, Shinshu Univ. Perspective evaluation of virtual sound sources produced with a focusing-beam loudspeaker array
Akihiko Yamakawa, Ryosuke Horiuchi, Takeshi Saitou, Masato Miyoshi (Kanazawa Univ.), Keisuke Kinoshita, Tomohiro Nakatani (NTT CS Labs.)
We previously reported that the sound image of a focal point was steerable through our focusing-beam type loudspeaker-ar... [more] EA2011-71
pp.19-24
EA, SIP, SP 2011-05-12
10:50
Osaka Ritsumeikan Univ. A Robust On-line Estimation Method of Noise Mixture Model for Noise Suppression
Masakiyo Fujimoto, Tomohiro Nakatani, Shinji Watanabe (NTT)
In this paper, we propose a robust on-line estimation method of noise mixture model for the statistical model-based nois... [more] EA2011-2 SIP2011-2 SP2011-2
pp.7-12
EA, SIP, SP 2011-05-12
15:00
Osaka Ritsumeikan Univ. [Invited Talk] Microphone array speech processing techniques for conversation scene analysis
Shoko Araki, Masakiyo Fujimoto, Takuya Yoshioka, Takaaki Hori, Tomohiro Nakatani (NTT)
Recognition and understanding of conversation scenes has recently been tackled to achieve a variety of tasks such as aut... [more] EA2011-15 SIP2011-15 SP2011-15
pp.83-88
SP 2011-01-27
16:30
Kyoto NICT Integrated approach of spectrum enhancement and feature compensation for noise reduction and robust speech recognition
Takuya Yoshioka, Tomohiro Nakatani (NTT)
 [more] SP2010-107
pp.25-30
EA, US
(Joint)
2011-01-21
16:00
Kyoto Doshisha Univ. On perspective control of sound images using a focusing-beam
Akihiko Yamakawa, Ryosuke Horiuchi, Kiyoshi Nishikawa, Takeshi Saitou, Masato Miyoshi (Kanazawa Univ.), Keisuke Kinoshita, Tomohiro Nakatani, Gabriel Pablo Nava (NTT CS Labs.)
We are studying on perspective information of sound images given by virtual sound sources produced in front of and behin... [more] EA2010-124
pp.113-118
NLC, SP
(Joint) [detail]
2010-12-20
16:30
Tokyo National Olympics Memorial Youth Center Noise suppression method based on noise bias-residual decomposition and optimization
Masakiyo Fujimoto, Shinji Watanabe, Tomohiro Nakatani (NTT Corp.)
In this paper, we propose a non-stationary noise estimation method based on bias-residual component decomposition, and s... [more] NLC2010-18 SP2010-91
pp.43-48
SP, EA, SIP 2010-05-26
14:55
Hyogo Konan Univ. (Hirao Seminar House) [Invited Talk] Recent advances in blind speech dereverberation
Keisuke Kinoshita, Takuya Yoshioka, Tomohiro Nakatani (NTT CS labs.)
A speech signal captured by a distant microphone inevitably contains reverberant components due to reflection from, for ... [more] EA2010-5 SIP2010-5 SP2010-5
pp.25-30
 Results 1 - 20 of 26  /  [Next]  
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