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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 20  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
EA, ASJ-H 2022-08-05
10:30
Miyagi
(Primary: On-site, Secondary: Online)
On causes of secondary path estimation error destabilizing active noise control and stabilization measures
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yoshifumi Chisaki (CIT) EA2022-36
In this paper, we clarify the mechanism of secondary path estimation error destabilizing active noise control and presen... [more] EA2022-36
pp.48-55
EA, SIP, SP, IPSJ-SLP [detail] 2022-03-01
09:20
Okinawa
(Primary: On-site, Secondary: Online)
[Poster Presentation] Methods applied to active sinusoidal noise control and their merits and demerits
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yushifumi Chisaki (CIT) EA2021-64 SIP2021-91 SP2021-49
In this paper, we compare the noise reduction effects provided by the feedback type applying the normalized least mean s... [more] EA2021-64 SIP2021-91 SP2021-49
pp.1-8
EA, US
(Joint)
2021-12-23
09:55
Kumamoto Sojo University Active sinusoidal noise control applying cascade connection of first order recursive and second order non-recursive filters to frequency conversion method
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yoshifumi Chisaki (CIT) EA2021-61
In this paper, we verify the effect of applying the cascade connection of the first oreder recursive type and the second... [more] EA2021-61
pp.24-31
EA, ASJ-H 2021-08-20
15:25
Online Online A study on methods for estimating the frequency of arriving sound by using frequency conversion for active sinusoidal noise control
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yoshifumi Chisaki (CIT) EA2021-24
in this paper, we propose a method for estinating the frequency of arriving sine wave by uisng frequency conversion for ... [more] EA2021-24
pp.19-26
EA, ASJ-H 2021-07-15
10:20
Online Online Substitution effect of frequency conversion method for filtered-x LMS algorithm applied to active sinusoidal noise control
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yoshifumi Chisaki (CIT) EA2021-3
In this paper, we verify the substitution effect of frequency conversion method for filtered-x LMS algorithm applied to ... [more] EA2021-3
pp.10-17
EA, US, SP, SIP, IPSJ-SLP [detail] 2021-03-03
14:05
Online Online [Poster Presentation] A Study on active sinusoidal noise reduction system not requiring adaptive algorithm and secondary path filter
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yoshifumi Chisaki (CIT) EA2020-65 SIP2020-96 SP2020-30
In this paper, we proposed an active sinusoidal noise control system not requiring adaptive algorithm and secondary path... [more] EA2020-65 SIP2020-96 SP2020-30
pp.33-40
EA 2020-12-14
11:35
Online Online A study on method improving noise reduction effect for filtered-x algorithm under high environmental noise
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yoshifumi Chisaki (Chiba Inst. Tech.) EA2020-51
In this paper, we propose a method for reducing the bias error caused by surrounding noise arriving at a noise detection... [more] EA2020-51
pp.31-38
SP, EA, SIP 2020-03-03
09:00
Okinawa Okinawa Industry Support Center
(Cancelled but technical report was issued)
A study on step size control method for pre-estimating adaptive filter in feedback type active noise control systems
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.), Yoshifumi Chisaki (CIT) EA2019-143 SIP2019-145 SP2019-92
In this paper, we propose a method for detecting the convergence of the adaptive filter estimating the feedback path in ... [more] EA2019-143 SIP2019-145 SP2019-92
pp.243-250
EA 2019-12-13
15:15
Fukuoka Kyushu Inst. Tech. A study on method for stabilizing the noise reduction effect in the system applying the simultaneous equations method to active noise control
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2019-82
In this paper, we propose a method for stabilizing the noise reduction effect fluctuation causing when the coefficients ... [more] EA2019-82
pp.111-118
EA, SIP, SP 2019-03-15
13:30
Nagasaki i+Land nagasaki (Nagasaki-shi) [Poster Presentation] A study on sound source direction detection method using coefficients of adaptive filter
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2018-141 SIP2018-147 SP2018-103
In this paper, we propose a method for detecting sound source direction using coefficients of adaptive filter. For detec... [more] EA2018-141 SIP2018-147 SP2018-103
pp.243-250
EA 2018-12-14
11:20
Fukuoka kyushu Univ. A study on step size adjusting method capable of stably starting filtered-x algorithm
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2018-91
In this paper, we propose a atep size control method for converging the step size within the stability performance range... [more] EA2018-91
pp.67-74
EA 2018-10-12
11:15
Fukushima Iwaki business Innovation Center (Iwaki) A study on method for re-estimating feedback path under active noise control
Kensaku Fujii (KOdaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2018-61
In this paper, we propose a method capable of re-estimating the feedback path under active noise contol. The cancellatio... [more] EA2018-61
pp.53-58
EA, ASJ-H 2018-08-23
12:30
Miyagi Tohoku Gakuin Univ. A study on method for detecting the convergence of coefficients of auxiliary filter applied to simultaneous equations method
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2018-28
The simultaneous equations method estimates the overall path from the input of the noise control filter to the output of... [more] EA2018-28
pp.1-6
EA, US
(Joint)
2017-01-26
10:30
Kyoto Doshisha Univ. A study on feedback path re-estimation method under active noise control
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) US2016-110 EA2016-78
In this paper, we propose a method detecting the increase of the cancellation remainder of the feedback path under activ... [more] US2016-110 EA2016-78
pp.185-190(US), pp.61-66(EA)
EA, SP, SIP 2016-03-28
13:15
Oita Beppu International Convention Center B-ConPlaza [Poster Presentation] A method for improving linear prediction effect by applying recursive type adaptive filter to linear prediction
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2015-77 SIP2015-126 SP2015-105
 [more] EA2015-77 SIP2015-126 SP2015-105
pp.63-68
US, EA
(Joint)
2016-01-29
10:25
Osaka Kansai University, Centenary Memorial Hall On a stable performance condition of feedback type active noise control system for preventive panel of sound leakage
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2015-59
 [more] EA2015-59
pp.27-32
EA, EMM 2015-11-13
14:45
Kumamoto Kumamoto Univ. Secondary and feedback paths improving stability and noise reduction effect in feedforward type active noise control system
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2015-38 EMM2015-59
 [more] EA2015-38 EMM2015-59
pp.81-86
EA 2015-07-03
15:20
Tokyo The Univ. of Electro-Communications, 80th Anniversary Memorial Hall A study on level diagram necessary for verification of stable operation of hands-free communication system
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2015-8
(To be available after the conference date) [more] EA2015-8
pp.39-44
EA 2015-07-03
15:50
Tokyo The Univ. of Electro-Communications, 80th Anniversary Memorial Hall An adaptive algorithm for acoustic echo canceler adjusting insertion loss to echo path change and double talk.
Kensaku Fujii (Kodaway Lab.), Takuya Sawada, Takuto Yoshioka (Univ. of Hyogo), Mitsuji Muneyasu (Kansai Univ.) EA2015-9
(To be available after the conference date) [more] EA2015-9
pp.45-50
US, EA
(Joint)
2015-01-29
09:50
Kyoto Doshisha Univ. A study on feedback path estimation method for feedforward type active noise control
Kensaku Fujii (Kodaway Lab.), Mitsuji Muneyasu (Kansai Univ.) EA2014-63
 [more] EA2014-63
pp.21-26
 Results 1 - 20 of 20  /   
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