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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SIP | 2023-08-08 14:40 |
Osaka | Osaka Univ. (Suita) Convention Center (Primary: On-site, Secondary: Online) |
[Invited Talk]
Recent Development on Acoustic Echo Canceller Kenta Iwai (Ritsumeikan Univ.)  SIP2023-61 |
In hands-free tele-communication systems, acoustic echo occurs and disturbs the speech communication. To reduce the acou... [more] | SIP2023-61 pp.71-76 |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-02-28 11:40 |
Okinawa | (Primary: On-site, Secondary: Online) |
Acoustic Echo and Noise Canceller Based on Minimization of Shared-Error Signal Kenta Iwai, Takanobu Nishiura (Ritsumeikan Univ.) EA2022-86 SIP2022-130 SP2022-50 |
This paper proposes a new acoustic echo and noise canceller (AENC) based on minimizing a shared error signal. The conven... [more] | EA2022-86 SIP2022-130 SP2022-50 pp.67-72 |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-03-01 15:15 |
Okinawa | (Primary: On-site, Secondary: Online) |
Directivity Control of Multichannel One-point Spherical Microphone by Long Short-term Memory Networks Shota Naiki, Kenta Iwai, Takanobu Nishiura (Ritsumeikan Univ), Yoshiharu Soeta (AIST) |
[more] | |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-03-01 15:20 |
Okinawa | (Primary: On-site, Secondary: Online) |
Study of Frequency Response Analysis of Effect Cymbals by Finite Element Method Kohei Izawa, Yuting Geng, Kenta Iwai, Takanobu Nishiura (Ritsumeikan Univ.) |
[more] | |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-03-01 15:25 |
Okinawa | (Primary: On-site, Secondary: Online) |
Study of Speech Quality Improvement for Interpolated Missing Segments of Extracted Speech Signals from Captured Videos with Dual Rolling-Shutter Cameras Hayata Nakano, Yuting Geng, Kenta Iwai, Takanobu Nishiura (Ritsumeikan Univ.) |
[more] | |
| EA, US, SP, SIP, IPSJ-SLP [detail] | 2021-03-04 15:45 |
Online | Online | Nonlinear Modeling of Electro-dynamic Loudspeaker by Nonlinear IIR Filter Kenta Iwai, Takanobu Nishiura (Ritsumeikan Univ.) EA2020-86 SIP2020-117 SP2020-51 |
In this paper, we introduce the nonlinear modeling of an electro-dynamic loudspeaker by a nonlinear IIR filter. There ar... [more] | EA2020-86 SIP2020-117 SP2020-51 pp.158-163 |
| SP, EA, SIP | 2020-03-02 13:00 |
Okinawa | Okinawa Industry Support Center (Cancelled but technical report was issued) |
[Poster Presentation]
[Poster presentation] A Study on application of Nonlinear IIR Filter to Nonlinear Acoustic Echo Canceller Kenta Iwai (Ritsumeikan Univ.), Yoshinobu Kajikawa (Kansai Univ.) EA2019-123 SIP2019-125 SP2019-72 |
[more] | EA2019-123 SIP2019-125 SP2019-72 pp.129-134 |
| SIP, EA, SP, MI (Joint) [detail] |
2018-03-19 13:00 |
Okinawa | [Poster Presentation]
A Study on Head-mounted Feedforward ANC System
-- Noise Reduction Performance When Extended to Case(2,1,1) ANC System -- Takumi Miyake, Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) EA2017-125 SIP2017-134 SP2017-108 |
Head-mounted single channel ANC system has been studied as a noise reduction method in complicated noise environments su... [more] | EA2017-125 SIP2017-134 SP2017-108 pp.135-140 |
|
| SIP, EA, SP, MI (Joint) [detail] |
2018-03-19 13:00 |
Okinawa | [Poster Presentation]
Formulation of frequency characteristic of second-order nonlinear IIR filter Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) EA2017-129 SIP2017-138 SP2017-112 |
In this paper, formulation of a frequency characteristic of a second-order nonlinear IIR filter is presented. The second... [more] | EA2017-129 SIP2017-138 SP2017-112 pp.155-160 |
|
| SIP, EA, SP, MI (Joint) [detail] |
2018-03-19 13:00 |
Okinawa | [Poster Presentation]
A Study on Identification of Loudspeaker System Using Adaptive Wiener Filter with Cross-correlation Method Ryota Saika, Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) EA2017-134 SIP2017-143 SP2017-117 |
[more] | EA2017-134 SIP2017-143 SP2017-117 pp.179-184 |
|
| SIP | 2017-08-24 14:40 |
Tokyo | Tokyo Denki University | Computational Complexity Reduction for Third-order Volterra Filter Based on Singular Value Decomposition and the Application to the Compensation of Third-order Nonlinear Distortions Yuya Nakahira, Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) SIP2017-53 |
Nonlinear distortions of loudspeaker systems affect the sound quality and should be accordingly compensated by any lin... [more] |
SIP2017-53 pp.27-32 |
| SP, SIP, EA | 2017-03-02 09:00 |
Okinawa | Okinawa Industry Support Center | [Poster Presentation]
Parameter estimation method for mirror filter based on quadratically constrained quadratic optimization
-- A study on a estimation using measured displacement of the diaphragm -- Kenta Iwai (Kansai Univ.), Masao Yamagishi (Tokyo Tech), Yoshinobu Kajikawa (Kansai Univ.) EA2016-127 SIP2016-182 SP2016-122 |
This paper shows the parameter estimation results using the measured displacement of the diaphragm by parameter estimati... [more] | EA2016-127 SIP2016-182 SP2016-122 pp.255-260 |
| EA, SP, SIP | 2016-03-28 13:15 |
Oita | Beppu International Convention Center B-ConPlaza | [Poster Presentation]
A Study on Compensation Ability of 3rd-order Nonlinear Distortions using Mirror Filter Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) EA2015-91 SIP2015-140 SP2015-119 |
In this paper, we discuss the compensation ability of 3rd-order nonlinear distortions using Mirror filter. The multiple ... [more] | EA2015-91 SIP2015-140 SP2015-119 pp.147-152 |
| SIP, EA, SP | 2015-03-03 10:45 |
Okinawa | [Poster Presentation]
A Study on Compensation Ability of Mirror Filter Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) EA2014-115 SIP2014-156 SP2014-178 |
In this paper, we discuss the compensation ability of Mirror filter. The multiple sinusoidal wave is used for evaluation... [more] | EA2014-115 SIP2014-156 SP2014-178 pp.237-242 |
|
| EA, US (Joint) |
2014-01-28 10:00 |
Osaka | Kansai University, Centenary Memorial Hall | A comparison of compensation amount of nonlinear distortions in electrodynamic loudspeaker using Mirror filter Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) EA2013-109 |
In this paper, we compare the efficiency of compensating nonlinear distortions in electrodynamic loudspeaker system usin... [more] | EA2013-109 pp.33-38 |
| EA | 2011-08-09 15:15 |
Miyagi | RIEC, Tohoku Univ. | Parameter Estimation Method for Closed-box Loudspeaker system Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) EA2011-54 |
In this paper, we propose a parameter estimation method for a closed-box loudspeaker system using Volterra kernels. A n... [more] |
EA2011-54 pp.25-30 |
| EA | 2010-11-18 14:45 |
Fukuoka | Kyushu Univ. | Linearization of Dyanamic Loudspeaker System Using Second-Order Nonlinear IIR Filter Kenta Iwai, Yoshinobu Kajikawa (Kansai Univ.) EA2010-87 |
In this paper, we propose a linearization method of dyanamic loudspeaker system using a second-order nonlinear IIR Filte... [more] | EA2010-87 pp.19-24 |
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