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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SP, SIP, EA | 2017-03-02 09:00 |
Okinawa | Okinawa Industry Support Center | [Poster Presentation]
Performance evaluation of noisy shouted speech detection based on acoustic model with rahmonic and mel-frequency cepstrum coefficients Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Univ.), Hiroaki Nanjo (Kyoto Univ.)  EA2016-132 SIP2016-187 SP2016-127 |
This paper describes a method based on new combined features with mel-frequency cepstrum coefficients (MFCCs) and rahmon... [more] | EA2016-132 SIP2016-187 SP2016-127 pp.283-286 |
| SP, SIP, EA | 2017-03-02 15:45 |
Okinawa | Okinawa Industry Support Center | Speech enhancement with phase reconstruction using phase distortion in harmonic frequency Yukoh Wakabayashi, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2016-145 SIP2016-200 SP2016-140 |
Conventionally the speech enhancement in noisy environment is widely studied by modifying only the amplitude spectrum of... [more] | EA2016-145 SIP2016-200 SP2016-140 pp.351-356 |
| EA, ASJ-H | 2016-08-09 14:00 |
Miyagi | Tohoku Gakuin Univ., Tagajo Campus | Phase reconstruction based on time-frequency domain harmonic structure for speech enhancement Yukoh Wakabayashi, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2016-22 |
Conventional speech enhancement in noisy environment is widely studied by modifying only an amplitude spectrum of a spee... [more] | EA2016-22 pp.13-18 |
| EA, SP, SIP | 2016-03-28 10:45 |
Oita | Beppu International Convention Center B-ConPlaza | Distortion Correction of Observed Speech with Optical Microphone Using Reflected Laser Tomoyuki Mizuno, Yukoh Wakabayashi, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Univ.) EA2015-69 SIP2015-118 SP2015-97 |
It is very important for security and surveillance to obtain the distant-talking speech. However, it is difficult for ge... [more] | EA2015-69 SIP2015-118 SP2015-97 pp.19-24 |
| EA, SP, SIP | 2016-03-28 13:15 |
Oita | Beppu International Convention Center B-ConPlaza | [Poster Presentation]
Evaluation on Variable Radiation Characteristics with Flexible Parametric Loudspeaker Shinya Komori, Daisuke Ikefuji, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Univ.) EA2015-98 SIP2015-147 SP2015-126 |
A parametric loudspeaker has sharper radiation characteristics, and it can form a spatial narrow audible area which a pa... [more] | EA2015-98 SIP2015-147 SP2015-126 pp.183-188 |
| EA, SP, SIP | 2016-03-29 09:00 |
Oita | Beppu International Convention Center B-ConPlaza | [Poster Presentation]
A Study of Auditory Masking toward Discomfort Reduction of Railway Brake Sounds Sayaka Okayasu, Daisuke Ikefuji, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura (Ritsumeikan University) EA2015-120 SIP2015-169 SP2015-148 |
In this paper, we report a discomfort reduction method for railway brake sounds.We have previously proposed a discomfort... [more] | EA2015-120 SIP2015-169 SP2015-148 pp.299-304 |
| EA, SP, SIP | 2016-03-29 09:00 |
Oita | Beppu International Convention Center B-ConPlaza | [Poster Presentation]
A Study of Indoor-environmental Sound Discrimination Based on Deep Neural Network with Mel-cepstrum Sakiko Mishima, Yukoh Wakabayashi, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura (Ritsumeikan University) EA2015-121 SIP2015-170 SP2015-149 |
Surveillance systems with a video camera have been utilized for the safety of people. Environmental sound discrimination... [more] | EA2015-121 SIP2015-170 SP2015-149 pp.305-310 |
| EA, SP, SIP | 2016-03-29 09:00 |
Oita | Beppu International Convention Center B-ConPlaza | [Poster Presentation]
Speech Enhancement Based on Phase Reconstruction Using Fundamental Frequency and a Priori SNR Yukoh Wakabayashi, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2015-122 SIP2015-171 SP2015-150 |
Conventionally the speech enhancement in noisy environment is widely studied by modifying only the amplitude spectrum of... [more] | EA2015-122 SIP2015-171 SP2015-150 pp.311-316 |
| EA, ASJ-H | 2015-08-04 10:30 |
Miyagi | Tohoku Univ., Research Inst. of Electrical Communication | Comfortable Sound Design of Dental Treatment Sound Based on Chord-progression-forming Yoshitaka Ohshio, Daisuke Ikefuji, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Univ.) |
In a dental treatment, doctors and patients feel strong discomfort feeling by hearing dental treatment sounds. It is cau... [more] | EA2015-18 pp.47-52 |
| EA, ASJ-H | 2015-08-04 11:00 |
Miyagi | Tohoku Univ., Research Inst. of Electrical Communication | Feature Analysis and Discomfort Reduction for Infant Cry Based on Auditory Masking Aomi Kobayashi, Daisuke Ikefuji, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura, Haruo Sakuma (Ritsumeikan Univ.) |
[more] | EA2015-19 pp.53-58 |
| SIP, EA, SP | 2015-03-02 11:40 |
Okinawa | Optimization of impulse responses for model training in reverberant speech recognition Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2014-78 SIP2014-119 SP2014-141 |
The reverberant speech degrades the speech recognition performance in the field of distant-talking speech. As one of app... [more] | EA2014-78 SIP2014-119 SP2014-141 pp.37-42 |
|
| SIP, EA, SP | 2015-03-03 10:45 |
Okinawa | [Poster Presentation]
Design of 3D moving sound image with spherical parametric loudspeaker Daisuke Ikefuji, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2014-116 SIP2014-157 SP2014-179 |
We have previously proposed the system with parametric loudspeakers for three-dimensional sound field reproduction. It ... [more] |
EA2014-116 SIP2014-157 SP2014-179 pp.243-248 |
|
| SIP, EA, SP | 2015-03-03 10:45 |
Okinawa | [Poster Presentation]
An evaluation of audio spot expansion based on separating emission with curved-type parametric loudspeakers Tadashi Matsui, Daisuke Ikefuji, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Univ.) EA2014-118 SIP2014-159 SP2014-181 |
The parametric loudspeaker has sharper directivity and it can achieve an audio spot which can represent the audible soun... [more] | EA2014-118 SIP2014-159 SP2014-181 pp.255-260 |
|
| SIP, EA, SP | 2015-03-03 10:45 |
Okinawa | [Poster Presentation]
Multimodal source number estimation in multi-party conversations Yukoh Wakabayashi, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2014-120 SIP2014-161 SP2014-183 |
Source number plays an important role in blind source separation (BSS) and sound source localization (SSL) based on subs... [more] | EA2014-120 SIP2014-161 SP2014-183 pp.267-272 |
|
| SIP, EA, SP | 2015-03-03 10:45 |
Okinawa | [Poster Presentation]
Multi-stage danger sound detection based on power envelope and spectal ratio Asako Okamoto, Kohei Hayashida, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Univ.) EA2014-122 SIP2014-163 SP2014-185 |
Danger sound detection methods with environmental sounds have been proposed for monitoring the safety of the elder peopl... [more] | EA2014-122 SIP2014-163 SP2014-185 pp.279-284 |
|
| SIP | 2014-08-28 10:30 |
Osaka | Ritsumeikan Univ. (Osaka Umeda Campus) | A numerical evaluation in finite difference method with polar represented spacetime domain for acoustical simulation with boundaries Kota Nakano, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) SIP2014-72 |
In this paper, a new approach is evaluated for computer-aided acoustical simulation. The approach reduces numerical disp... [more] | SIP2014-72 pp.1-6 |
| SIP | 2014-08-28 10:55 |
Osaka | Ritsumeikan Univ. (Osaka Umeda Campus) | A study of noise identification method based on runs test for iterative spectral subtraction Ryota Miyake, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Unnv.) SIP2014-73 |
In this paper, we determine the optimal iteration times of L-SS based on kurtosis ratio and SDR for stationary and non-s... [more] | SIP2014-73 pp.7-12 |
| EA | 2014-06-27 13:30 |
Mie | Mie Univ. | An experimental study of optimum parameters in hybrid modulation based on amplitude and frequency with parametric loudspeaker for suitable speech reproduction Toru Iwasaki, Daisuke Ikefuji, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Univ.) EA2014-6 |
Parametric loudspeaker with sharper directivity has been generally used for audio guidance to a specific listener. To em... [more] | EA2014-6 pp.7-12 |
| EA | 2014-06-27 14:00 |
Mie | Mie Univ. | A Suggestion on Method to Reproduce Moving Sound Image with Curved-Type Parametric Loudspeaker Daisuke Ikefuji, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2014-7 |
We have previously proposed the system with parametric loudspeakers for 3-dimensional sound field reproduction. It can ... [more] |
EA2014-7 pp.13-18 |
| SP | 2014-02-28 10:00 |
Tokushima | The University of Tokushima | A proposal of close/distant talker discrimination based on kurtosis of linear prediction residual signals Kohei Hayashida, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.), Toshiharu Horiuchi, Tsuneo Kato (KDDI R&D Labs.) SP2013-107 |
Desired/undesired speech discrimination is as important as speech/non-speech discrimination to achieve useful applicatio... [more] | SP2013-107 pp.1-6 |
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