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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SP, IPSJ-MUS | 2014-05-25 11:30 |
Tokyo | Design of voice-enabled web test system for eliminating users' impatience Chihiro Tafuji, Ryuichi Nisimura, Hideki Kawahara, Toshio Irino (Wakayama Univ.)  SP2014-33 |
[more] | SP2014-33 pp.337-342 |
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| EMM | 2014-03-08 14:20 |
Ishikawa | JAIST | Generating surround sound signals for headphone listening with high sense of reality by means of constrained weighted least squares Ryouichi Nishimura (NICT), Kotaro Sonoda (Nagasaki Univ.) EMM2013-118 |
Considering that people watch video clips often on mobile terminals, we propose a method for surround sound mixing. In t... [more] | EMM2013-118 pp.111-116 |
| SP | 2014-01-24 14:00 |
Aichi | Meijo Univ. | Contributing factors in preference judgement in read sentences using morphing of individual attributes Shoki Yoshimoto, Ryuichi Nisimura, Toshio Irino, Hideki Kawahara (Wakayama Univ) SP2013-104 |
A new research strategy based on a recently proposed morphing algorithm, time varying multi-aspect N-way speech morphing... [more] | SP2013-104 pp.49-54 |
| EA | 2013-10-11 12:30 |
Kyoto | NTT CS Lab. | Sound field recording and reproduction by multiple parallel linear arrays using crosstalk cancellers in spatio-temporal frequency domain Takuma Okamoto, Seigo Enomoto, Ryouichi Nishimura (NICT) EA2013-64 |
A novel signal processing for sound field recording and reproduction using parallel multiple linear microphone / loudspe... [more] | EA2013-64 pp.1-8 |
| SP, JSAI-SLUD (Joint) |
2013-09-18 16:20 |
Chiba | Chiba Univ. | An analysis of the relationship between prosodic information, head motion, and estimated emotional state in explanatory dialogue Miyuki Yagi, Reiko Morita, Masato Nakai, Ryuichi Nisimura, Hideki Kawahara, Toshio Irino (Wakayama Univ.) SP2013-67 |
[more] | SP2013-67 pp.15-20 |
| EA | 2013-07-18 11:00 |
Hokkaido | Health Sci. Univ. of Hokkaido | Frequency-proportional dilation and compression in singing voice spectra and contributing factors Makoto Sakaguchi, Mayuko Kobayashi, Toshio Irino, Ryuichi Nisimura, Hideki Kawahara (Wakayama Univ.) EA2013-35 |
A new estimation method of relative vocal tract length was proposed based on short time Fourier analysis and demonstrate... [more] | EA2013-35 pp.9-14 |
| EA, EMM | 2012-11-17 14:10 |
Oita | OITA Univ. | Estimation of sound field based on inversion of Kirchhoff-Helmholtz integral equation and forward wave propagation Takuma Okamoto, Seigo Enomoto, Ryouichi Nishimura (NICT) EA2012-105 EMM2012-87 |
We propose a novel sound field estimation method based on inversion of Kirchhoff-Helmholtz integral equation and forward... [more] | EA2012-105 EMM2012-87 pp.141-146 |
| EA | 2012-07-19 13:30 |
Hokkaido | Health Sci. Univ. of Hokkaido | A stable representation of group delay for periodic signals Hideki Kawahara (Wakayama Univ.), Masanori Morise (Ritsumei. Univ.), Ryuichi Nisimura, Toshio Irino (Wakayama Univ.) EA2012-45 |
Instantaneous frequency and group delay, which are defined as the temporal derivative and the frequency derivative of ph... [more] | EA2012-45 pp.1-6 |
| PRMU, SP | 2012-02-09 16:30 |
Miyagi | [Poster Presentation]
An Analysis of Foreign Student Utterances for Computerized Japanese Speaking Test Web System Risa Kurihara (Wakayama Univ.), Kenkichi Ishizuka (Univ. of Tsukuba), Ryuichi Nisimura (Wakayama Univ.), Takahiro Shinozaki (Chiba Univ.), Takeshi Yamada, Shingo Imai (Univ. of Tsukuba) PRMU2011-219 SP2011-134 |
We are developing a computerized Japanese speaking test system, which are implemented using web protocols of the Interne... [more] | PRMU2011-219 SP2011-134 pp.141-142 |
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| EA, US (Joint) |
2012-01-26 16:00 |
Osaka | Kansai Univ. | [Invited Talk]
Three-Dimensional Audio: Present and Future Perspective
-- Current Research Focus at NICT -- Ryouichi Nishimura, Seigo Enomoto, Hiroaki Kato, Akiko Callan, Toshiyuki Kimura, Hironori Takemoto, Parham Mokhtari (NICT) US2011-94 EA2011-112 |
Towards practical use of three-dimensional audio, many research topics have to be solved. We have been tackling subjects... [more] | US2011-94 EA2011-112 pp.47-52(US), pp.49-54(EA) |
| EMM | 2011-11-15 15:00 |
Miyagi | Relationships between spectral distance correlation and sound localization in the median plane Ryouichi Nishimura, Hiroaki Kato, Hironori Takemoto, Parham Mokhtari (NICT) EMM2011-54 |
Spatial audio technologies allow audio media to contain spatial information more flexibly than conventional stereo or su... [more] | EMM2011-54 pp.83-88 |
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| EA | 2011-08-10 13:30 |
Miyagi | RIEC, Tohoku Univ. | An excitation structure extraction for voiced sounds with multiple periodicity and its application to pathological voices Yoshika Wada (Wakayama Univ.), Masanori Morise (Ritsumeikan Univ.), Ryuichi Nisimura, Toshio Irino, Hideki Kawahara (Wakayama Univ.) EA2011-63 |
[more] | EA2011-63 pp.81-86 |
| EA | 2011-08-10 14:00 |
Miyagi | RIEC, Tohoku Univ. | Cross synthesis vocoder that preserves both speech intelligibility and instruments' timbre Taiki Nishi, Ryuichi Nisimura, Toshio Irino, Hideki Kawahara (Wakayama Univ.) EA2011-64 |
TANDEM-STRAIGHT, an F0-adaptive spectral envelope extraction procedure was applied to cross synthesis VOCODER, which sy... [more] |
EA2011-64 pp.87-92 |
| SP | 2011-07-22 09:00 |
Hokkaido | Jozankei Grand Hotel | Estimation of vocal tract length ratio using auditory filterbank Erika Okamoto, Toshio Irino, Ryuichi Nisimura, Hideki Kawahara (Wakayama Univ.) SP2011-43 |
Vocal tract length normalization(VTLN) is an important issue in speech applications, such as automatic speech recognitio... [more] | SP2011-43 pp.11-16 |
| EMM | 2011-05-30 16:30 |
Tokyo | National Inst. of Info. | [Panel Discussion]
Future of multimedia processing aimed by EMM Akira Nishimura (Tokyo Univ. Info. Sci.), Isao Echizen (NII), Ryouichi Nishimura (NICT), Michiharu Niimi (Kyushu Inst. Tech.), Hirohisa Hioki (Kyoto Univ.), Naofumi Aoki (Hokkaido Univ.) EMM2011-7 |
[more] | EMM2011-7 pp.37-40 |
| EA | 2010-07-16 13:00 |
Tokyo | RION Co., Ltd. | A study on methods for solo play synthesis with a spherical speaker array Yoko Yamakata (Kyoto Univ.), Ryouichi Nishimura, Michiaki Katsumoto, Toshiyuki Kimura (NICT) EA2010-38 |
We have constructed a spherical loudspeaker array that has 26 multi-channel loudspeakers on its surface and can reproduc... [more] | EA2010-38 pp.1-6 |
| EA | 2010-06-11 15:00 |
Hokkaido | Health Sci. Univ. of Hokkaido | Optimization of excitation structure extraction based on objective evaluation using speech-like test signals Yoshika Wada, Hanae Itagaki (Wakayama Univ.), Masanori Morise (Ritsumeikan Univ.), Ryuichi Nisimura, Toshio Irino, Hideki Kawahara (Wakayama Univ.) EA2010-35 |
Investigations on analysis and synthesis of expressive voice, such as ``husky'' and ``hoarse'' voices, which are typical... [more] | EA2010-35 pp.77-82 |
| EA | 2010-06-11 15:30 |
Hokkaido | Health Sci. Univ. of Hokkaido | Relevant Frequency band for vocal tract length normalization based on spectral distance Erika Okamoto, Yoshiki Asaka, Ryuichi Nisimura, Toshio Irino, Hideki Kawahara (Wakayama Univ.) EA2010-36 |
Normalization of speaker dependent spectral differences is an important issue in speech applications, such as automatic ... [more] | EA2010-36 pp.83-88 |
| SP | 2010-03-05 15:15 |
Tokyo | Shibaura Inst. of Tech. (Toyosu Campus) | Representation and estimation of aperiodic component in voiced sounds for high-quality speech analysis and synthesis systems Hideki Kawahara (Wakayama Univ.), Masanori Morise (Ritsumei. Univ.), Toru Takahashi (Kyoto Univ.), Hideki Banno (Meijo Univ.), Ryuichi Nisimura, Toshio Irino (Wakayama Univ.) SP2009-165 |
Mixed-mode excitation is crucially important and effective for high-quality speech analysis, modification and resynthesi... [more] | SP2009-165 pp.99-104 |
| EA | 2009-06-26 10:00 |
Hokkaido | Non-linguistic subjective evaluation of timbre based on audio-visual integration Saori Nishida (Wakayama Univ.), Masanori Morise (Ritsumeikan Univ.), Ryuichi Nisimura, Toshio Irino, Hideki Kawahara (Wakayama Univ.) EA2009-26 |
Perceptually relevant representations of timbre using two dimensional shapes are investigated aiming at establishing a f... [more] | EA2009-26 pp.49-54 |
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