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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SIP, SP, EA, IPSJ-SLP [detail] | 2024-02-29 11:00 |
Okinawa | (Primary: On-site, Secondary: Online) |
Evaluation of Effect of Scatterer Shape on Incident Sound Field Estimation Based on Kernel Interpolation Shihori Kozuka (NTT), Shoichi Koyama (NII), Hiroaki Itou, Noriyoshi Kamado (NTT)  EA2023-69 SIP2023-116 SP2023-51 |
Techniques for estimating the incident sound field using multiple microphones are effective for spatial sound field cont... [more] | EA2023-69 SIP2023-116 SP2023-51 pp.51-56 |
| EA, ASJ-H | 2023-08-31 15:15 |
Miyagi | Study of HRTF of spherical head, spherical torso and disk pinna Kiyoshi Sugiyama (Tokyo Inst. Politechnics) EA2023-22 |
The artificial head is decomposed into three elements: the head sphere, the torso sphere, and the pinna disc. The scatte... [more] | EA2023-22 pp.24-29 |
|
| AP | 2023-05-11 10:30 |
Okinawa | Okinawa Gender Equality Center (Primary: On-site, Secondary: Online) |
Spherical Cap Structure MIMO-OTA Apparatus for Generating the Cluster Propagation Environments Kazuhiro Honda (Univ. of Toyama) AP2023-8 |
In order to realize the cluster propagation environments that forms a Gaussian distribution in the vertical and horizont... [more] | AP2023-8 pp.1-6 |
| AP, MW (Joint) |
2022-09-16 12:25 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
Bandwidth Enhancement of a Spherical Helix Antenna with Multi-Mode Excitation Takuma Shimada (MIT), Mina Nishie, Keisuke Noguchi (KIT), Keisuke Fujita (MIT) AP2022-89 |
We propose the electrically small spherical helix antenna (SHA) with a folded structure to achieve broadbanding by using... [more] | AP2022-89 pp.100-105 |
| EA, ASJ-H | 2022-08-04 14:30 |
Miyagi | (Primary: On-site, Secondary: Online) |
HRTF of spherical head and ellipsoidal torso Kiyoshi Sugiyama (former Tokyo Polytechnic Univ.), Masaharu Shimada (former Inst. Nagaoka Tech. & Sci.), Haruhide Hokari (Inst. Nagaoka Tech. & Sci.) EA2022-31 |
The HRTF and HRIR of the right ear are examined from the calculation for the sound source movement in the horizontal, me... [more] | EA2022-31 pp.19-24 |
| EA, SIP, SP, IPSJ-SLP [detail] | 2022-03-02 15:35 |
Okinawa | (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Interpolation of head-related transfer function from small amount of observation data using deep learning based on spherical wavefunction expansion Yuki Ito, Tomohiko Nakamura, Shoichi Koyama, Hiroshi Saruwatari (UTokyo) EA2021-90 SIP2021-117 SP2021-75 |
In binaural synthesis, listeners' individual head-related transfer functions (HRTFs) are necessary for highly-immersive ... [more] | EA2021-90 SIP2021-117 SP2021-75 pp.163-170 |
| EMM, EA, ASJ-H | 2021-11-16 09:00 |
Online | Online | [Poster Presentation]
Mode-matching with energy constraint of loudspeakers based on analytical approach Yuki Kawasaki, Makoto Otani (Kyoto Univ.) EA2021-49 EMM2021-76 |
Higher-Order Ambisonics (HOA) is a method of sound field reproduction, which usually uses mode matching to control expan... [more] | EA2021-49 EMM2021-76 pp.128-133 |
| EMCJ | 2021-04-16 13:55 |
Online | Online | Verification of De-embedding Modeling on Reverberation Chambers by a Spherical Conductor Kodai Yaguchi, Takahiro Aoyagi (Tokyo Tech) EMCJ2021-3 |
Reverberation chambers (RCs) which can apply statistically isotropic fields to a working volume are attracted attention ... [more] | EMCJ2021-3 pp.10-14 |
| EA, ASJ-H, EMM | 2020-11-20 09:00 |
Online | Online | [Poster Presentation]
Sound Field Recording Using Distributed Microphone Arrays Based on a Virtual Sphere Model Kosuke Katada, Shuichi Sakamoto (Tohoku Univ.) EA2020-23 EMM2020-38 |
Higher-order Ambisonics (HOA) is a sound field synthesis method based on wave equation. Sound field recorded at certain... [more] |
EA2020-23 EMM2020-38 pp.9-14 |
| AP, WPT (Joint) |
2020-01-24 10:50 |
Kagawa | Sunport Hall Takamatsu | [Tutorial Lecture]
Research on optimal small antennas using the spherical wave expansion Keisuke Fujita (Maebashi Tech.) AP2019-169 |
The optimum current on electrically small spherical antennas is obtained using the spherical wave expansion. The radiati... [more] | AP2019-169 pp.105-109 |
| EA, ASJ-H, ASJ-AA | 2019-07-17 11:25 |
Hokkaido | SAPPORO COMMUNITY PLAZA | Directivity synthesis using multipole sources based on higher spherical harmonic expansion
-- application to FDTD method -- Daichi Sakamoto, Takao Tsuchiya (Doshisha Univ.) EA2019-14 |
In this paper, a method to obtain arbitrary directivity patterns by FDTD method is considered, focusing on the directivi... [more] | EA2019-14 pp.71-76 |
| EA, ASJ-H, EMM, IPSJ-MUS [detail] | 2018-11-21 13:30 |
Ishikawa | Hotel Koshuen | Directional pattern analysis of late reverberation using spherical microphone array Yuto Izumi, Makoto Otani (Kyoto Univ.) EA2018-65 EMM2018-65 |
Arrival direction of reflected sound is one of important factors to characterize spatial impression. An impulse response... [more] | EA2018-65 EMM2018-65 pp.13-18 |
| RCS, AP (Joint) |
2018-11-22 11:00 |
Okinawa | Okinawa Industry Support Center | A simple evaluation method of residual aberration in reflect arrays Aoi Kotoura, Shigeru Makino, Yoshimi Sunaga (KIT), Michio Takikawa, Hiromasa Nakajima (Mitsubishi Electric) AP2018-132 |
In the conventional method of evaluating the phase error frequency characteristic, the relationship between the phase er... [more] | AP2018-132 pp.171-175 |
| EA | 2018-10-12 10:00 |
Fukushima | Iwaki business Innovation Center (Iwaki) | Evaluation of shared sound field synthesis using spherical microphone array recoding Taku Shimizu, Jorge Trevino, Shuichi Sakamoto, Yo-iti Suzuki (Tohoku Univ.), Tomohiko Ise (Alpine) EA2018-58 |
Conventional sound field synthesis methods may require a large system because of synthesizing a huge control region to e... [more] | EA2018-58 pp.27-32 |
| EMCJ | 2018-07-27 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Measurement of discharge current using shielded-loop probe caused by ESD in spherical electrodes. Masato Oikawa, Kento Kato, Shinobu Ishigami, Ken Kawamata, Shigeki Minegishi (Tohoku Gakuin Univ.), Osamu Fujiwara (Nagoya Inst. of Tech.) EMCJ2018-28 |
The relationship between the electromagnetic radiation intensity accompanying the spherical electrode ESD and the peak d... [more] | EMCJ2018-28 pp.37-42 |
| US, EA (Joint) |
2018-01-23 13:00 |
Osaka | [Poster Presentation]
Performance improvement of gridless sound field decomposition using signal separation based on convex optimization Yuhta Takida, Shoichi Koyama, Natsuki Ueno, Hiroshi Saruwatari (The Univ. of Tokyo) EA2017-87 |
A sound field reconstruction method inside a region including sound sources is proposed. Previously, a method based on a... [more] | EA2017-87 pp.19-24 |
|
| AP, WPT (Joint) |
2018-01-18 10:15 |
Nara | ATR | Comparison of natural plastic Sochacki lens antennas, part 1
-- assessment of discretised prototype lenses -- Derek Gray (XJTLU), Nasiha Nikolic (CSIRO) AP2017-153 |
There are several different approaches to design spherical lenses that have higher surface permittivity than free space,... [more] | AP2017-153 pp.13-18 |
| EMT, IEE-EMT | 2016-11-17 15:45 |
Wakayama | Shirahama Coganoi Resort & Spa | Basic Study of Sharp Angle Radiation Phenomenon from Multimode Dielectric Resonator As Pseudo Multipole Source Takayuki Matsumuro, Yohei Ishikawa, Tomohiko Mitani, Naoki Shinohara (Kyoto Univ.) EMT2016-54 |
The feasibility of a radiation system with directivity which does not depend on the physical size of the hardware is bas... [more] | EMT2016-54 pp.103-106 |
| EA, ASJ-H | 2016-08-10 13:50 |
Miyagi | Tohoku Gakuin Univ., Tagajo Campus | Shared sound field reproduction over two regions including distance effects Taku Shimizu, Jorge Trevino, Shuichi Sakamoto, Yo-iti Suzuki (Tohoku Univ.), Tomohiko Ise (Alpine) EA2016-30 |
Multi-zone sound field reproduction can present spatial sound to multiple users. Conventional methods attempts to contro... [more] | EA2016-30 pp.59-63 |
| WPT | 2016-03-07 16:10 |
Kyoto | Kyoto Univ. Uji Campus | Experimental Study of the Beam Convergence Method Using METLAB Facilities Takashi Uno, Kuniaki Shibata, Kenji Saegusa, Takano Tadashi (Nihon Univ.), Takaki Ishikawa, Naoki Shinohara (Kyoto Univ.) WPT2015-83 |
Wireless power transmission in a relatively close distance have been examined. In this case, we have to generate and pro... [more] | WPT2015-83 pp.39-44 |
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