• Life Eng. Research Award Sep 2023

  
  I was awarded the Research Encouragement Award from SICE's Life Engineering Division in Kawagoe, Japan, for young researchers under 35.
  - Award Announcement
  - SICE-LE Division Website
• Nakatani Travel Grant July 2023

  
  I was awarded a Technical Exchange Program Subsidy by the Nakatani Foundation to participate in an international conference, IEEE EMBC in Australia.
  - About Nakatani Foundation
• Marubun Travel Grant January 2023

  
  I was awarded an International Exchange Grant by the Marubun Foundation to participate in an international conference, IEEE ICCE in USA.
  - 国際会議参加レポート (Participation Report)
• ICA-ASA Young Scientist October 2022

  
  I received ICA-ASA Young Scientist Grant at 24th International Congress on Acoustics (ICA),
  Gyeongju, South Korea.
• Best Paper Award October 2021

  
  1^st Place Best Paper Award
  International Conference on Computer, Control, Informatics and Its Applications (IC3INA).
  Bandung - Indonesia
• Best Presentation Award October 2021

  
  1^st Place Best presentation, voted by audiences
  International Conference on Computer, Control, Informatics and Its Applications (IC3INA).
  Bandung - Indonesia
• 3rd Favorite Winner September 2020

  
  4th Open Innovation Indonesian Medical Education and Research Institute (OI-IMERI 2020).
  Jakarta - Indonesia
  - YouTube: Our StethoPhone Explainer Video
• Best Paper and Presentation Award September 2019

  
  The EAA Best Paper and Presentation Awards
  ICA2019 in Aachen, Germany.
  List of the winners
• Finalist November 2018

  
  Falling Walls Lab Finale in Berlin, Germany.
• Invited Young Lecturer October 2018

  Invited Young Lecturer (IYL) Program, Sendai - JAPAN
  Tohoku Universal Acoustical Communication Month.
  24 individuals were chosen as IYLs, including me, and we each received a full travel grant.
  link of the event
  
• Student Paper Award October 2018

  
  1^st Prize Student Paper Award, Nara - JAPAN
  IEEE Global Conference on Consumer Electronics
  list of the winners
• 2^nd Place FWLT 2018 May 2018

  
  2^nd Place, Falling Walls Lab Tokyo (FWLT) - JAPAN.
  Links for the News:
  DWIH Tokyo Web
  DWIH Tokyo Twitter
  University of Tokyo Web
  University of Tokyo Web (in Japanese)
• Student Award March 2018

  
  Student Award (Doctoral Program), Fukuoka - JAPAN.
  The Acoustical Society of Japan - Kyushu Chapter.
  A link to the list of selected students
• Best Student Paper November 2017

  
  1^st Place Student Paper Award, Bali - INDONESIA
  Regional Conference on Acoustics and Vibration.
• Favorite Team December 2016

  
  The 3^rd HARK Hackathon, Tokyo - JAPAN.
  link of the event
• MEXT Scholarship October 2016

  Recipient of MEXT Scholarship for Doctoral Program at Kumamoto University.
• Student Presentation Award Sept 2016

  
  Student Presentation Award,Toyama - JAPAN
  The Spring Meeting of the Acoustical Society of Japan
• Student Award March 2016

  
  Student Award (Master Program), Fukuoka - JAPAN.
  The Acoustical Society of Japan - Kyushu Chapter.
  A link to the list of selected students
• Student Poster Award October 2015

  
  Best Student Poster,Kumamoto - JAPAN.
  Department of Human & Environmental Informatics, Kumamoto University.
• MEXT Scholarship October 2014

  Recipient of MEXT Scholarship for Master Program at Kumamoto University.

@InProceedings{irwan:GCCE2024,
	title = {Using Forehead Accelerometer Data to Estimate Bone-Conduction Hearing Thresholds: Feasibility and Initial Findings},
	year = {2024}
}
@Proceedings{irwan:ASJautumn2024-DummyHead,
	title = {An Evaluation of 3D Printing for Creating Dummy Heads to Study Crosstalk Cancellation in Bone Conduction},
	year = {2024}
}
@Proceedings{irwan:JSMBE63,
	title = {Comparative Study on Crosstalk Cancellation in Bone Conduction: Human Subjects vs. Dummy Skull Model with Embedded Accelerometers},
	year = {2024}
}
@article{irwan:AST2024,
    title = {Pinna Hardness and Vibrator Placement: Their Effects on Bone Conduction Through the Pinna},
    year = {2024}
    }
@Proceedings{irwan:ASJautumn2024-HumanPinnas,
	title = {Evaluating Cartilage Conduction: A Comparative Study of Sound Transmission in Artificial and Human Pinnas},
	year = {2024}
}
@article{irwan:MethodsX2023,
title = {Unilateral Crosstalk Cancellation via Bone Conduction: Methods and Evaluation},
year = {2023}
}
@InProceedings{irwan:USE44,
	title = {Exploring the Impact of Pinna Hardness and Vibrator Placement on Bone Conduction Through the Pinna},
	year = {2023}
}
@Proceedings{irwan:ASJautumn2023-Pinna,
	title = {Comparing Sound Propagation in Silicone Pinna Models: The Effect of Vibrator Positioning},
	year = {2023}
}
@Proceedings{irwan:ASJautumn2023-Crosstalk,
	title = {Towards Optimized Crosstalk Cancellation in Bone Conduction: An In-depth Exploration of FxLMS and Lateralization},
	year = {2023}
}
@Proceedings{irwan:LE2023,
	title = {Crosstalk Cancellation in Bone Conduction Hearing: Human vs. Ballistic Dummy Head Study},
	year = {2023}
}
@InProceedings{akane:INTERNOISE2023,
	title = {Effects of size and hardness of pinna on cartilage conduction hearing: Comparison between auricular hematoma and normal subjects},
	year = {2023}
}
@InProceedings{irwan:INTERNOISE2023,
	title = {FxLMS and Lateralization: A Combined Strategy for Crosstalk Cancellation in Bone Conduction},
	year = {2023}
}
@InProceedings{irwan:EMBC2023,
	title = {Cancelling Crosstalk Sound in Bone Conduction Hearing: An Accelerometer-Based Approach},
	year = {2023}
}
@InProceedings{akane:EMBC2023,
	title = {Effects of hardness and dimension of pinna and auricular hematoma on detection threshold of cartilage conduction},
	year = {2023}
}
@Proceedings{irwan:JSMBE2023,
	title = {骨伝導の聞こえの改善を目指したクロストーク・キャンセリング手法の開発},
	year = {2023}
}
@InProceedings{blelone:ISPA2021,
	title = {Fabrication of low-cost 3D printed stethoscope: Material selections and acoustical performance},
	year = {2023}
}
@Proceedings{irwan:ASJspring2023,
	title = {An Inexpensive 3D-Printed Bell Stethoscope Connected to a Smartphone for Low-Resource Settings},
	year = {2023}
}
@InProceedings{irwan:ICCE2023,
	title = {Real-Time Implementation of Unilateral Crosstalk Cancellation Based on Bone Conduction},
	year = {2023}
}
@Proceedings{irwan:YIW2022,
	title = {Towards Real-Time Crosstalk Cancellation for Application in Bone Conduction Hearing Devices},
	year = {2022}
}
@Proceedings{akane:YIW2022,
	title = {耳介の形態・硬度が軟骨伝導の検出閾特性に及ぼす影響},
	year = {2022}
}
@article{irwan:IEEEaccess2022,
title = {Improved Low-Frequency Crosstalk Cancellation in Bone Conduction Using Bone Transducers and Probe Microphone},
year = {2022}
}
@InProceedings{irwan:ICA2022,
	title = {Effects of in-ear-sensor type on bone-conduction-based crosstalk cancellation: an assessment by tone reception thresholds},
	year = {2022}
}
@Proceedings{irwan:ASJautumn2022,
	title = {Unilateral Crosstalk Cancellation in Bone Conduction Using an Accelerometer Placed at the Mastoid},
	year = {2022}
}
@Proceedings{akane:ASJautumn2022,
	title = {Effects of morphology and hardness of the pinna and gender on detection threshold of cartilage conduction},
	year = {2022}
}
@Proceedings{irwan:ASJspring2022,
	title = {Measurement of Tone Reception Thresholds With and Without Bone-Conduction-Based Crosstalk Cancellation},
	year = {2022}
}
@InProceedings{irwan:LifeTech2022,
	title = {Development of Acoustically Optimized, 3D-Printed Stethoscope for Telehealth},
	year = {2022}
}
@InProceedings{irwan:IC3INA2021,
  title = {Evaluation of Bone-Conducted Cross-Talk Sound in the Head for Biometric Identification},
  year = {2021}
}
@article{irwan:UAC,
title = {In-ear microphone measures in the ear canal with bone conduction stimulation: an application for estimating a cross-talk compensation filter},
year = {2020}
}
@misc{Marinah:JTech,
  title = {Analisis Matematis Pengelasan Grey Cast Iron menggunakan Proses GTAW dengan dan Tanpa Preheat},
  year = {2021}
}
@InProceedings{fajar:ICAST2019,
  title = {Is Zero Electricity Cost Cryptocurrency Mining Possible? Solar Power Bank on Single Board Computers},
  year = {2019}
}
@article{irwan:VinPS2019,
title = {Binaural speech segregation system on single board computer},
year = {2019}
}
@InProceedings{irwan:ICA2019,
  title = {Estimation of cross-talk compensation filter using bone conduction ear microphone},
  year = {2019}
}
@Proceedings{kai:IEICE,
title = {On speaker identification under multiple-talker condition using frequency domain binaural model},
year = {2019}
}
@Proceedings{mori:IEICE,
title = {Implementation to solve a front-back confusion on frequency domain binaural model},
year = {2019}
}
@article{irwan:ASTletter,
title = {Bone conduction microphone measures in the external auditory canal: an application
for implementing cross-talk cancellation for bone-conducted sound},
year = {2019}
}
@InProceedings{irwan:GCCE2018,
  title = {Open-Source Raspberry Pi Hearing Assistance Device with Consumer Hardware},
  year = {2018}
}
@Proceedings{bagus:ASJautumn,
  title = {Application of Frequency Domain Binaural Model for Keyword Spotting on Simultaneous Speech},
  year = {2018}
}
@Proceedings{mitarai:IEICE,
  title =  {Real-time implementation of frequency domain binaural model-based speech segregation by using sound source direction information obtained by a webcamera},
  year =   2018
}
@Proceedings{kuse:IEICE,
  title =  {On multiple-loudspeaker system for simultaneous reproduction of two sound sources},
  year =   2018
}
@InProceedings{kuse:YKJCA,
  title = {Development of a Speaker Array System to Control Directivity Characteristics in Low Frequency Range},
  year = {2017}
}
@misc{ernawita:JFA,
  title = {Preparasi dan Karakterisasi Dye-sensitized Solar Cell (DSSC) dengan Pewarna Ekstrak Jeruk: Pengaruh Variasi Komposisi Karotenoid dan Flavonoid Terhadap Efisiensi Sel Surya},
  year = {2017}
}
@Proceedings{irwan:ASJkyushu,
  title = {Frequency Domain Binaural Model (FDBM)-Based Speech Segregation: Discussion on Buffer Size for Low-Latency Real-Time Processing using Single Board Computer},
  year = {2017}
}
@InProceedings{irwan:ICSE2017,
  title = {Real-Time Binaural Speech Segregation using a Single Board Computer and In-Ear Microphones/Earphones: Low-Cost Hearing Aids for Use in Research and Education},
  year = {2017}
}
@InProceedings{irwan:RECAV2017,
  title = {Performance Evaluation of a Back-to-Back Speaker System using a Single Board Computer as a Digital Signal Processor},
  year = {2017}
}
@InProceedings{kai:ICAST2017,
  title = {Real-Time Frequency Domain Binaural Model-Based Speech Segregation using a Single Board Computer: Application for Binaural Hearing Aids},
  year = {2017}
}
@InProceedings{irwan:TENCON2017,
  title = {Application of Active Control Technique on a Bone Conduction Headphone for Estimating a Cross-talk Compensation Filter},
  year = {2017}
}
@InProceedings{irwan:INTERNOISE46,
  title = {Development of a Semi-Circular Speaker Array System to Control Low-Frequency Radiation Pattern},
  year = {2017}
}
@article{irwan:AST2016,
title = {Estimation of time difference of arrivals between direct sound and reflected sounds using time-frequency information of a single-channel signal},
year = {2016}
}
@InProceedings{irwan:ICOMPAC,
  title = {A Theoretical Study on Directivity Control of Multiple-Loudspeaker System with a Quadrupole Radiation Pattern in Low Frequency Range},
  year = {2016}
}
@Proceedings{irwan:ASJautumn2016,
  title = {Outdoor obstacles localization via the intersection of multiple ellipses},
  year = {2016}
}
@Proceedings{irwan:ASJspring2016,
  title = {Dynamic threshold for a peak detection of estimation method of time difference of arrivals between direct sound and reflected sounds},
  year = {2016}
}
@Proceedings{irwan:IEICE,
  title =  {Estimation of sound pressure levels of direct Sound and reflected sounds based on single-channel signal separation},
  year =   2015
}
@Proceedings{irwan:ASJautumn,
  title = {Performance of estimation method of time difference of arrivals between direct sound and reflected sounds from a single-channel signal},
  year = {2015}
}
@Proceedings{Onoguchi:IEICE,
  title =  {Estimation of arrival time differences between direct and reflected sounds from monaural observed signal},
  year =   2015
}
@InProceedings{fitri:ISPHOA,
  title = {Radial line method for rear-view mirror distortion detection},
  year = {2014}
}
@InProceedings{irwan:SEACMA,
  title = {Performance evaluation of two-microphone separation with convolutive speech mixtures},
  year = {2013}
}
@Proceedings{irwan:SNMA,
  title = {Teknik Pemisahan Sinyal Suara menggunakan Deteksi Puncak pada Scattering Plot},
  year = {2013}
}
@InProceedings{kusumawardhani:IJCCS,
  title = {Application of concentric circle method for detection of rear-view mirror distortion},
  year = {2012}
}

BC Hearing Thresholds⁽¹⁾

• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Using Forehead Accelerometer Data to Estimate Bone-Conduction Hearing Thresholds: Feasibility and Initial Findings," IEEE 13th Global Conference on Consumer Electronics, 2024. (Type: International Conference) (Submitted)

Crosstalk in Bone Conduction⁽¹⁸⁾

• Irwansyah, Sho Otsuka, Seiji Nakagawa, "An Evaluation of 3D Printing for Creating Dummy Heads to Study Crosstalk Cancellation in Bone Conduction," The Autumn meeting of the Acoustical Society of Japan, 2024. (Type: Domestic Conference) (Submitted)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Comparative Study on Crosstalk Cancellation in Bone Conduction: Human Subjects vs. Dummy Skull Model with Embedded Accelerometers," The 63rd Annual Conference of Japanese Society for Medical and Biological Engineering, 2024. (Type: Domestic Conference) (@Kagoshima, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Unilateral Crosstalk Cancellation via Bone Conduction: Methods and Evaluation," MethodsX, 11, p. 102394, 2023. (Type: Journal Paper) (doi: 10.1016/j.mex.2023.102394)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Towards Optimized Crosstalk Cancellation in Bone Conduction: An In-depth Exploration of FxLMS and Lateralization," The Autumn meeting of the Acoustical Society of Japan, 2023. (Type: Domestic Conference) (J-GLOBAL) (@Nagoya, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Crosstalk Cancellation in Bone Conduction Hearing: Human vs. Ballistic Dummy Head Study," ライフエンジニアリング部門シンポジウム2023, 2023. (Type: Domestic Conference) (@Kawagoe, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "FxLMS and Lateralization: A Combined Strategy for Crosstalk Cancellation in Bone Conduction," INTER-NOISE 2023, vol. 268, no. 4, pp. 4866-4873, 2023. (Type: Int. Conference) (doi:10.3397/IN_2023_0690) (@Chiba, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Cancelling Crosstalk Sound in Bone Conduction Hearing: An Accelerometer-Based Approach," The 45th Int. Conf. of the IEEE Eng. in Medicine and Biology Society, pp. 1-4, 2023. (Type: Int. Conference) (doi:10.1109/EMBC40787.2023.10340123) (@Sydney, AUSTRALIA)
• Irwansyah, 大塚 翔, 中川 誠司, "骨伝導の聞こえの改善を目指したクロストーク・キャンセリング手法の開発," 第62回日本生体医工学会大会, pp. 370-372, 2023. (Type: Domestic Conference) (doi:10.11239/jsmbe.Annual61.370) (@Nagoya, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Real-Time Implementation of Unilateral Crosstalk Cancellation Based on Bone Conduction," IEEE International Conference on Consumer Electronics (ICCE), pp. 1-6, 2023. (Type: Int. Conference) (doi:10.1109/ICCE56470.2023.10043413) (@Las Vegas, USA)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Towards Real-Time Crosstalk Cancellation for Application in Bone Conduction Hearing Devices," 日本生体医工学会関東支部 若手研究者発表会, 2022. (Type: Domestic Conference) (@Tokyo, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Improved Low-Frequency Crosstalk Cancellation in Bone Conduction Using Bone Transducers and Probe Microphone," IEEE Access, Vol. 10, 79201-79212, 2022. (Type: Journal Paper) (doi: 10.1109/ACCESS.2022.3194171)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Effects of in-ear-sensor type on bone-conduction-based crosstalk cancellation: an assessment by tone reception thresholds," 24th International Congress on Acoustics, 2022. (Type: Int. Conference) (@Gyeongju, KOREA)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Unilateral Crosstalk Cancellation in Bone Conduction Using an Accelerometer Placed at the Mastoid," The Autumn meeting of the Acoustical Society of Japan, 2022. (Type: Domestic Conference) (J-GLOBAL) (@Hokkaido, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Measurement of Tone Reception Thresholds With and Without Bone-Conduction-Based Crosstalk Cancellation," The Spring meeting of the Acoustical Society of Japan, 2022. (Type: Domestic Conference) (J-GLOBAL) (@Online, JAPAN)
• Irwansyah, Tsuyoshi Usagawa, "In-ear microphone measures in the ear canal with bone conduction stimulation: an application for estimating a cross-talk compensation filter," Acoustical Science and Technology, 41(1), 439-442, 2020. (Type: Journal Article) (doi: 10.1250/ast.41.439)
• Irwansyah, Tsuyoshi Usagawa, "Estimation of cross-talk compensation filter using bone conduction ear microphone," 23rd International Congress on Acoustics, 7232-7238, 2019. (Type: Int. Conference) (doi: 10.18154/RWTH-CONV-239939) (@Aachen, GERMANY)
• Irwansyah, Tsuyoshi Usagawa, "Bone conduction microphone measures in the external auditory canal: an application for implementing cross-talk cancellation for bone-conducted sound," Acoustical Science and Technology, 40(5), 356-359, 2019. (Type: Journal Article) (doi: 10.1250/ast.40.356)
• Irwansyah, Tsuyoshi Usagawa, "Application of Active Control Technique on a Bone Conduction Headphone for Estimating a Cross-talk Compensation Filter," IEEE TENCON 2017, 3099-3104, 2017. (Type: Int. Conference) (doi: 10.1109/TENCON.2017.8228394) (@Penang, MALAYSIA)

Cartilage Conduction Hearing⁽⁸⁾

• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Pinna Hardness and Vibrator Placement: Their Effects on Bone Conduction Through the Pinna," Acoustical Science and Technology, 2024. (Type: Journal Paper) (doi:10.1250/ast.e24.10)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Evaluating Cartilage Conduction: A Comparative Study of Sound Transmission in Artificial and Human Pinnas," The Spring meeting of the Acoustical Society of Japan, 2024. (Type: Domestic Conference) (@Tokyo, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Exploring the Impact of Pinna Hardness and Vibrator Placement on Bone Conduction Through the Pinna," The 44th Symposium on UltraSonic Electronics, vol. 44, p. 68, 2023. (Type: International Conference) (doi:10.24492/use.44.0_1P5-16) (@Toyama, JAPAN)
• Irwansyah, Akane Tamura, Sho Otsuka, Seiji Nakagawa, "Comparing Sound Propagation in Silicone Pinna Models: The Effect of Vibrator Positioning," The Autumn meeting of the Acoustical Society of Japan, 2023. (Type: Domestic Conference) (J-GLOBAL) (@Nagoya, JAPAN)
• Akane Tamura, Irwansyah, Sho Otsuka, Seiji Nakagawa, "Effects of size and hardness of pinna on cartilage conduction hearing: Comparison between auricular hematoma and normal subjects," INTER-NOISE 2023, vol. 268, no. 3, pp. 5526-5533, 2023. (Type: Int. Conference) (doi:10.3397/IN_2023_0784) (@Chiba, JAPAN)
• Akane Tamura, Irwansyah, Sho Otsuka, Seiji Nakagawa, "Effects of hardness and dimension of pinna and auricular hematoma on detection threshold of cartilage conduction," The 45th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, pp. 1-4, 2023. (Type: Int. Conference) (doi:10.1109/EMBC40787.2023.10340462) (@Sydney, AUSTRALIA)
• 田村 茜, Irwansyah, 大塚 翔, 中川 誠司, "耳介の形態・硬度が軟骨伝導の検出閾特性に及ぼす影響," 日本生体医工学会関東支部 若手研究者発表会, 2022. (Type: Domestic Conference) (@Tokyo, JAPAN)
• Akane Tamura, Irwansyah, Sho Otsuka, Seiji Nakagawa, "Effects of morphology and hardness of the pinna and gender on detection threshold of cartilage conduction," The Autumn meeting of the Acoustical Society of Japan, 2022. (Type: Domestic Conference) (J-GLOBAL) (@Hokkaido, JAPAN)

Biometrics⁽¹⁾

• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Evaluation of Bone-Conducted Cross-Talk Sound in the Head for Biometric Identification," International Conference on Computer, Control, Informatics and Its Applications (IC3INA), pp. 76-80, 2021. (Type: Int. Conference) (doi: 10.1145/3489088.3489119) (@Online, INDONESIA)

3D Printing of Medical Devices⁽³⁾

• Bambang L. Widjiantoro, Irwansyah, Ruri A. Wahyuono, "Fabrication of low-cost 3D printed stethoscope: Material selections and acoustical performance," In AIP Conference Proceedings. AIP Publishing., 2604(1), 2023. (Type: Int. Conference) (doi: 10.1063/5.0120480) (@Surabaya, INDONESIA)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "An Inexpensive 3D-Printed Bell Stethoscope Connected to a Smartphone for Low-Resource Settings," The Spring meeting of the Acoustical Society of Japan, 2023. (Type: Domestic Conference) (J-GLOBAL) (@Online, JAPAN)
• Irwansyah, Sho Otsuka, Seiji Nakagawa, "Development of Acoustically Optimized, 3D-Printed Stethoscope for Telehealth," The 2022 IEEE 4th Global Conference on Life Sciences and Technologies, pp. 135-139, 2022. (Type: Int. Conference) (doi: 10.1109/LifeTech53646.2022.9754838) (@Osaka, JAPAN)

Speech Enhancement⁽⁹⁾

• Tsuyoshi Usagawa, Irwansyah, "Binaural speech segregation system on single board computer," Vibrations in Physical Systems, 30(1), 1-9, 2019. (Type: Journal Article) (Vibrations in Physical Systems)
• Kai Kiyota, Irwansyah, Kousuke Matsuoka, Tsuyoshi Usagawa, "On speaker identification under multiple-talker condition using frequency domain binaural model," IEICE Technical Report, 118(410), 7-12, 2019. (Type: Technical Report) (IEICE-EA) (@Kyoto, JAPAN)
• Takuya Mori, Masahiro Koga, Kai Kiyota, Irwansyah, Tsuyoshi Usagawa, "Implementation to solve a front-back confusion on frequency domain binaural model," IEICE Technical Report, 118(410), 13-18, 2019. (Type: Technical Report) (IEICE-EA) (@Kyoto, JAPAN)
• Irwansyah, Muhammad Bagus Andra, Kai Kiyota, Koki Mitarai, Tsuyoshi Usagawa, "Open-Source Raspberry Pi Hearing Assistance Device with Consumer Hardware," IEEE GCCE, 164-165, 2018. (Type: Int. Conference) (doi: 10.1109/GCCE.2018.8574633) (@Nara, JAPAN)
• Muhammad Bagus Andra，Irwansyah, Tsuyoshi Usagawa, "Application of Frequency Domain Binaural Model for Keyword Spotting on Simultaneous Speech," The Autumn Meeting of the Acoustical Society of Japan, 2018. (Type: Domestic Conference) (Conf. Program Book) (@Oita, JAPAN)
• Koki Mitarai, Kai Kiyota, Irwansyah, Tsuyoshi Usagawa, "Real-time implementation of frequency domain binaural model-based speech segregation by using sound source direction information obtained by a webcamera,” IEICE Technical Report, 117(430), 21-26, 2018. (Type: Technical Report) (CiNii Articles) (@Hiroshima, JAPAN)
• Irwansyah, Koutsuke Matsuoka, Kai Kiyota, Tsuyoshi Usagawa, "Frequency Domain Binaural Model (FDBM)-Based Speech Segregation: Discussion on Buffer Size for Low-Latency Real-Time Processing using Single Board Computer," ASJ (Acoustical Society of Japan) Kyushu Student Meeting, 2017. (Type: Domestic Conference) (@Fukuoka, JAPAN)
• Irwansyah, Kai Kiyota, Tsuyoshi Usagawa, "Real-Time Binaural Speech Segregation using a Single Board Computer and In-Ear Microphones/Earphones: Low-Cost Hearing Aids for Use in Research and Education," International Conference on Science and Engineering (ICSE), 2017. (Type: Int. Conference) (@Yangon, Myanmar)
• Kai Kiyota, Irwansyah, Tsuyoshi Usagawa, "Real-Time Frequency Domain Binaural Model-Based Speech Segregation using a Single Board Computer: Application for Binaural Hearing Aids," International Student conference on Advanced Science and Technology (ICAST), 2017. (Type: Int. Conference) (@Kaohsiung, TAIWAN)

Loudspeaker Array⁽⁵⁾

• Naoyuki Kuse, Irwansyah, Koshiro Hira, Tsuyoshi Usagawa, "On multiple-loudspeaker system for simultaneous reproduction of two sound sources," IEICE Technical Report, 117(339), 1-6, 2018. (Type: Technical Report) (CiNii Articles) (@Osaka, JAPAN)
• Irwansyah, Raphael Masson, Naoyuki Kuse, Tsuyoshi Usagawa, "Performance Evaluation of a Back-to-Back Speaker System using a Single Board Computer as a Digital Signal Processor," Regional Conference on Acoustics and Vibration (RECAV): IOP Conf. Series: Journal of Physics, 1075, 1-5, 2017. (Type: Int. Conference) (doi: 10.1088/1742-6596/1075/1/012022) (@Bali, INDONESIA)
• Irwansyah, Naoyuki Kuse, Tsuyoshi Usagawa, "Development of a Semi-Circular Speaker Array System to Control Low-Frequency Radiation Pattern," The 46th INTER-NOISE, 5067-5072, 2017. (Type: Int. Conference) (INCE Conf. Proceedings) (@HONGKONG)
• Naoyuki Kuse, Irwansyah, Koshiro Hira, Tsuyoshi Usagawa, "Development of a Speaker Array System to Control Directivity Characteristics in Low Frequency Range," The Eighth Youngnam and Kyushu Joint Conference on Acoustics , 2017. (Type: Int. Conference) (Conf. Program) (@Busan, KOREA)
• Irwansyah, Naoyuki Kuse, Tsuyoshi Usagawa, "A Theoretical Study on Directivity Control of Multiple-Loudspeaker System with a Quadrupole Radiation Pattern in Low Frequency Range," International Conference on Mathematics: Pure, Applied and Computation, 1867(020029), 1-5, 2016. (Type: Int. Conference) (doi: 10.1063/1.4994432) (@Surabaya, INDONESIA)

Estimation of Time Difference of Arrivals⁽⁶⁾

• Irwansyah, Taira Onoguchi, Yoshifumi Chisaki, Tsuyoshi Usagawa, "Outdoor obstacles localization via the intersection of multiple ellipses," The Autumn Meeting of the Acoustical Society of Japan, 2016. (Type: Domestic Conference) (J-GLOBAL) (@Toyama, JAPAN)
• Irwansyah, Taira Onoguchi, Yoshifumi Chisaki, "Dynamic threshold for a peak detection of estimation method of time difference of arrivals between direct sound and reflected sounds," The Spring Meeting of the Acoustical Society of Japan, 2016. (Type: Domestic Conference) (J-GLOBAL) (@Yokohama, JAPAN)
• Irwansyah, Taira Onoguchi, Yoshifumi Chisaki, "Estimation of time difference of arrivals between direct sound and reflected sounds using time-frequency information of a single-channel signal," Acoustical Science and Technology, 37(1), 36-39, 2016. (Type: Journal Paper) (doi: 10.1250/ast.37.36)
• Irwansyah, Taira Onoguchi, Yoshifumi Chisaki, "Estimation of sound pressure levels of direct Sound and reflected sounds based on single-channel signal separation," IEICE Technical Report, 115(302), 1-6, 2015. (Type: Technical Report) (IEICE web) (@Kumamoto, JAPAN)
• Irwansyah, Taira Onoguchi, Yoshifumi Chisaki, "Performance of estimation method of time difference of arrivals between direct sound and reflected sounds from a single-channel signals," The Autumn Meeting of the Acoustical Society of Japan, 2015. (Type: Domestic Conference) (J-GLOBAL) (@Fukushima, JAPAN)
• Taira Onoguchi, Irwansyah, Yoshifumi Chisaki, "Estimation of arrival time differences between direct and reflected sounds from monaural observed signal," IEICE Technical Report, 114(473), 7-12, 2015. (Type: Technical Report) (CiNii Articles) (@Okinawa, JAPAN)

Engineering Materials⁽²⁾

• Murti Marinah, Doty Dewi Risanti, Irwansyah, Detak Yan Pratama, Asep Suharto, Muhammad Fadila, "Analisis Matematis Pengelasan Grey Cast Iron menggunakan Proses GTAW dengan dan Tanpa Preheat," JURNAL TECHNOPRENEUR, 9(1), 14-21, 2021. (Type: Indonesian Article) (doi: 10.30869/jtech.v9i1.698)
• E Ernawita, Irwansyah, Dyah Sawitri, Ruri Agung Wahyuono, "Preparasi dan Karakterisasi Dye-sensitized Solar Cell (DSSC) dengan Pewarna Ekstrak Jeruk: Pengaruh Variasi Komposisi Karotenoid dan Flavonoid Terhadap Efisiensi Sel Surya," Jurnal Fisika dan Aplikasinya, 13(3), 103-108, 2017. (Type: Indonesian Article) (doi: 10.12962/j24604682.v13i3.2839)

Speech Separation⁽²⁾

• Irwansyah, Dhany Arifianto, "Performance evaluation of two-microphone separation with convolutive speech mixtures," South East Asian Conference on Mathematics and its Applications (SEACMA), 2013. (Type: Int. Conference) (@Surabaya, INDONESIA)
• Irwansyah, Dhany Arifianto, Aulia Siti Aisjah, "Teknik Pemisahan Sinyal Suara menggunakan Deteksi Puncak pada Scattering Plot," Seminar Nasional Matematika dan Aplikasinya, pp. 86-92, 2013. (Type: Domestic Conference) (@Surabaya, INDONESIA)

Image Processing⁽²⁾

• Fitri R., Apriani K., Heru S., A. M. Hatta, Irwansyah, "Radial line method for rear-view mirror distortion detection," International Seminar on Photonics, Optics, and Applications (ISPhOA 2014), vol. 9444, pp. 70-74 SPIE, 2014. (Type: Int. Conference) (doi: 10.1117/12.2080940) (@Bali, INDONESIA)
• A. Kusumawardhani, Heru S., M. T. Nurismu, Irwansyah, Sekartedjo, "Application of concentric circle method for detection of rear-view mirror distortion," The 5-th Indonesia Japan Joint Scientific Symposium, 2012. (Type: Int. Conference) (Google Scholar) (@Chiba, JAPAN)

Cryptocurrency Mining⁽¹⁾

• Fajar Purnama, Irwansyah, Muhammad Bagus Andra, Tsuyoshi Usagawa, "Is Zero Electricity Cost Cryptocurrency Mining Possible? Solar Power Bank on Single Board Computers," the 14th International Student Conference on Advanced Science and Technology (ICAST), 2019. (Type: Int. Conference) (Research Gate) (@Kumamoto, JAPAN)