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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 | (Okinawa, Online) (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 |
| EMM, EA, ASJ-H | 2023-11-24 09:30 |
Toyama | (Toyama) | [Invited Talk]
Unified Framework of Sound Field Reproduction and Its Perceptial Quality Enhancement Shoichi Koyama (NII) EA2023-47 EMM2023-78 |
Sound field reproduction is aimed at synthesizing a desired sound field in a target area using multiple loudspeakers. By... [more] | EA2023-47 EMM2023-78 pp.104-108 |
| EA | 2022-05-13 12:45 |
Online | Online (Online) | Directionally-weighted region-to-region kernel interpolation of acoustic transfer function Juliano G. C. Ribeiro, Shoichi Koyama, Hiroshi Saruwatari (UTokyo) EA2022-4 |
An interpolation method for the acoustic transfer function (ATF) for variable source and receiver points within regions ... [more] | EA2022-4 pp.18-19 |
| EA, SIP, SP, IPSJ-SLP [detail] | 2022-03-02 13:25 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Filtered-X LMS algorithm based on individual interpolation of primary and secondary sound fields for spatial active noise control Kazuyuki Arikawa, Shoichi Koyama, Hiroshi Saruwatari (The Univ. of Tokyo) EA2021-84 SIP2021-111 SP2021-69 |
Spatial active noise control (ANC), which aims to reduce noise over a three-dimensional target region, has at- tracted a... [more] | EA2021-84 SIP2021-111 SP2021-69 pp.126-131 |
| EA, SIP, SP, IPSJ-SLP [detail] | 2022-03-02 13:25 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Sound Field Estimation from Small Number of Observations by Deep Learning with Difference-Approximation-Based Helmholtz-Equation Loss Function Kazuhide Shigemi, Shoichi Koyama, TomohikoNakamura, Hiroshi Saruwatari (UTokyo) EA2021-85 SIP2021-112 SP2021-70 |
We propose a single-frequency sound field estimation method from a small number of observations that uses a loss functio... [more] | EA2021-85 SIP2021-112 SP2021-70 pp.132-139 |
| EA, SIP, SP, IPSJ-SLP [detail] | 2022-03-02 15:35 |
Okinawa | (Okinawa, Online) (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 |
| SP, EA, SIP | 2020-03-02 13:00 |
Okinawa | Okinawa Industry Support Center (Okinawa) (Cancelled but technical report was issued) |
[Poster Presentation]
Sensor placement allowing independent setting of estimation and candidate regions for field estimation based on Gaussian process Tomoya Nishida, Natsuki Ueno, Shoichi Koyama, Hiroshi Saruwatari (Univ Tokyo) EA2019-125 SIP2019-127 SP2019-74 |
[more] | EA2019-125 SIP2019-127 SP2019-74 pp.141-146 |
| SP, EA, SIP | 2020-03-02 13:00 |
Okinawa | Okinawa Industry Support Center (Okinawa) (Cancelled but technical report was issued) |
[Poster Presentation]
Restoration of clipped signal using oversampling based on differentiable and convex loss function Natsuki Ueno, Shoichi Koyama, Hiroshi Saruwatari (Univ. Tokyo) EA2019-126 SIP2019-128 SP2019-75 |
A signal reconstruction method of clipped time-continuous signal using oversampling is proposed. The signal reconstructi... [more] | EA2019-126 SIP2019-128 SP2019-75 pp.147-152 |
| EA, US (Joint) |
2020-01-22 14:00 |
Kyoto | Doshisha Univ. (Kyoto) | [Poster Presentation]
Region-to-region acoustic transfer function estimation with distributed sources and receivers based on kernel interpolation Juliano G. C. Ribeiro, Natsuki Ueno, Shoichi Koyama, Hiroshi Saruwatari (Univ. Tokyo) EA2019-98 |
[more] | EA2019-98 pp.83-88 |
| US, EA (Joint) |
2018-01-23 13:00 |
Osaka | (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 |
| EA, US (Joint) |
2017-01-25 13:00 |
Kyoto | Doshisha Univ. (Kyoto) | [Poster Presentation]
Listening-area-informed sound field reproduction
-- A case study on arbitrary configuration and directivity of loudspeakers -- Natsuki Ueno, Shoichi Koyama, Hiroshi Saruwatari (Univ. Tokyo) EA2016-69 |
A sound field reproduction method using prior information on listening areas is proposed. Most current methods aim to re... [more] | EA2016-69 pp.7-12 |
| EA | 2015-12-11 15:15 |
Ishikawa | Kanazawa Univ., Satellite Plaza (Ishikawa) | [Poster Presentation]
Analysis on Degree of Freedom for Supervised NMF with All-Pole-Model-Based Basis Deformation Hiroaki Nakajima (UTokyo), Daichi Kitamura (SOKENDAI), Norihiro Takamune, Shoichi Koyama, Hiroshi Saruwatari (UTokyo), Nobutaka Ono (NII/SOKENDAI), Yu Takahashi, Kazunobu Kondo (Yamaha) EA2015-42 |
Conventional supervised NMF has the critical problem that a mismatch between the bases trained in advance and the target... [more] | EA2015-42 pp.13-18 |
| US, EA (Joint) |
2015-01-29 10:15 |
Kyoto | Doshisha Univ. (Kyoto) | Simultaneous adaptation of time-series a priori statistical model and spectral basis for binaural source separation Yuki Murota (NAIST), Daichi Kitamura (NII), Shoichi Koyama, Hiroshi Saruwatari (The Univ. of Tokyo), Satoshi Nakamura (NAIST) EA2014-64 |
In this paper, we propose a new approach for addressing binaural music signal separation based on the simultaneous adapt... [more] | EA2014-64 pp.27-32 |
| EA | 2014-03-28 16:50 |
Tokyo | NHK Science & Technology Research Labs. (Tokyo) | Robustness of spherical and cylindrical microphone arrays in harmonic beamforming applications Jorge Trevino (Tohoku Univ.), Shoichi Koyama (NTT), Shuichi Sakamoto, Yo-iti Suzuki (Tohoku Univ.) EA2013-126 |
Microphone arrays are commonly used to record spatial sound information. Several techniques, collectively known as harmo... [more] | EA2013-126 pp.37-42 |
| SIP, EA | 2008-05-29 14:25 |
Osaka | Kansai Univ. (Osaka) | Direct algorithm of wave source localization based weighted integral of partial differential equation
-- Theory and simulation -- Shoichi Koyama, Toru Kurihara, Shigeru Ando (Univ. Tokyo) EA2008-12 SIP2008-21 |
We deal with the problem of direction estimate and distance estimate of emission sources in 3-D space. We first introduc... [more] | EA2008-12 SIP2008-21 pp.37-42 |
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