Publications | NII Shoichi Koyama's Lab

2026

Time-domain sound field estimation using kernel ridge regression

Jesper Brunnström, Martin Bo Møller, Jan Østergaard, Shoichi Koyama, Toon Waterschoot, and Marc Moonen

IEEE Transactions on Audio, Speech and Language Processing, 2026

arXiv Bib HTML

@article{Brunnstroem:IEEE_J_ASLPRO2026_1,
  author = {Brunnström, Jesper and Møller, Martin Bo and Østergaard, Jan and Koyama, Shoichi and van Waterschoot, Toon and Moonen, Marc},
  title = {Time-domain sound field estimation using kernel ridge regression},
  journal = {{IEEE} Transactions on Audio, Speech and Language Processing},
  year = {2026},
  volume = {34},
  pages = {1243-1258},
  doi = {10.1109/TASLPRO.2026.3662464},
}

IEEE TASLPRO

Gaussian Process Regression of Steering Vectors With Physics-Aware Deep Composite Kernels for Augmented Listening

Diego Di Carlo, Shoichi Koyama, Aditya Arie Nugraha, Mathieu Fontaine, Yoshiaki Bando, and Kazuyoshi Yoshii

IEEE Transactions on Audio, Speech and Language Processing, 2026

arXiv Bib HTML

@article{DiCarlo:IEEE_J_ASLPRO2026,
  author = {Di Carlo, Diego and Koyama, Shoichi and Nugraha, Aditya Arie and Fontaine, Mathieu and Bando, Yoshiaki and Yoshii, Kazuyoshi},
  title = {Gaussian Process Regression of Steering Vectors With Physics-Aware Deep Composite Kernels for Augmented Listening},
  journal = {{IEEE} Transactions on Audio, Speech and Language Processing},
  year = {2026},
  volume = {34},
  pages = {2695-2708},
  doi = {10.1109/TASLPRO.2026.3684398},
}

IEEE TASLPRO

Sound field estimation with moving microphones using kernel ridge regression

Jesper Brunnström, Martin Bo Møller, Jan Østergaard, Shoichi Koyama, Toon Waterschoot, and Marc Moonen

IEEE Transactions on Audio, Speech and Language Processing, 2026

(in press)

arXiv Bib HTML

@article{Brunnstroem:IEEE_J_ASLPRO2026_2,
  author = {Brunnström, Jesper and Møller, Martin Bo and Østergaard, Jan and Koyama, Shoichi and van Waterschoot, Toon and Moonen, Marc},
  title = {Sound field estimation with moving microphones using kernel ridge regression},
  journal = {{IEEE} Transactions on Audio, Speech and Language Processing},
  year = {2026},
  doi = {10.1109/TASLPRO.2026.3724402},
  note = {(in press)}
}

電子情報通信学会誌

Sound Field Recording and Control

Shoichi Koyama

The Journal of the Institute of Electrical and Information Engineers, Japan, Jan 2026

(in Japanese)

Bib HTML PDF

@article{Koyama:IEICE_HBKB2026_en,
  author = {Koyama, Shoichi},
  title = {Sound Field Recording and Control},
  journal = {The Journal of the Institute of Electrical and Information Engineers, Japan},
  volume = {109},
  number = {1},
  month = jan,
  year = {2026},
  note = {(in Japanese)}
}

IEICE FR

Physics-Informed Machine Learning in Spatial Audio Processing

Shoichi Koyama

IEICE Fundamentals Review, Apr 2026

(in Japanese)

Bib HTML PDF

@article{Koyama:IEICE_FR2026_en,
  author = {Koyama, Shoichi},
  title = {Physics-Informed Machine Learning in Spatial Audio Processing},
  journal = {IEICE Fundamentals Review},
  volume = {19},
  number = {4},
  doi = {10.1587/essfr.19.4_187},
  month = apr,
  year = {2026},
  note = {(in Japanese)}
}

ICASSP

Phase-Retrieval-Based Physics-Informed Neural Networks For Acoustic Magnitude Field Reconstruction

Karl Schrader, Shoichi Koyama, Tomohiko Nakamura, and Mirco Pezzoli

In Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2026

arXiv Bib HTML

@inproceedings{Schrader:ICASSP2026,
  author = {Schrader, Karl and Koyama, Shoichi and Nakamura, Tomohiko and Pezzoli, Mirco},
  title = {Phase-Retrieval-Based Physics-Informed Neural Networks For Acoustic Magnitude Field Reconstruction},
  booktitle = {Proceedings of {IEEE} International Conference on Acoustics, Speech, and Signal Processing ({ICASSP})},
  address = {Barcelona},
  month = may,
  year = {2026},
  doi = {10.1109/ICASSP55912.2026.11460963},
}

ICASSP

On the Role of Trainable Parameters in Differentiable Feedback Delay Networks

Riccardo Giampiccolo, Alessandro Ilic Mezza, Shoichi Koyama, Mirco Pezzoli, Alberto Bernardini, Fabio Antonacci, and Augusto Sarti

In Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2026

Bib HTML

@inproceedings{Giampiccolo:ICASSP2026,
  author = {Giampiccolo, Riccardo and Mezza, Alessandro Ilic and Koyama, Shoichi and Pezzoli, Mirco and Bernardini, Alberto and Antonacci, Fabio and Sarti, Augusto},
  title = {On the Role of Trainable Parameters in Differentiable Feedback Delay Networks},
  booktitle = {Proceedings of {IEEE} International Conference on Acoustics, Speech, and Signal Processing ({ICASSP})},
  address = {Barcelona},
  month = may,
  year = {2026},
  doi = {10.1109/ICASSP55912.2026.11464540},
}

ICASSP

Secondary source placement for sound field control based on Ising model

Shihori Kozuka, Shoichi Koyama, Hiroaki Itou, and Noriyoshi Kamado

In Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2026

Bib HTML

@inproceedings{Kozuka:ICASSP2026,
  author = {Kozuka, Shihori and Koyama, Shoichi and Itou, Hiroaki and Kamado, Noriyoshi},
  title = {Secondary source placement for sound field control based on Ising model},
  booktitle = {Proceedings of {IEEE} International Conference on Acoustics, Speech, and Signal Processing ({ICASSP})},
  address = {Barcelona},
  month = may,
  year = {2026},
  doi = {10.1109/ICASSP55912.2026.11460723},
}

IWAENC

SF-Flow: Sound field magnitude estimation via flow matching guided by sparse measurements

Ege Erdem, Shoichi Koyama, Tomohiko Nakamura, Orchisama Das, and Zoran Cvetković

In Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), May 2026

(to appear)

arXiv Bib Code

@inproceedings{Erdem:IWAENC2026,
  author = {Erdem, Ege and Koyama, Shoichi and Nakamura, Tomohiko and Das, Orchisama and Cvetkovi\'c, Zoran},
  title = {SF-Flow: Sound field magnitude estimation via flow matching guided by sparse measurements},
  booktitle = {Proceedings of International Workshop on Acoustic Signal Enhancement ({IWAENC})},
  year = {2026},
  note = {(to appear)}
}

IWAENC

Learning-based Physics-Constrained Neural Kernel for Sound Field Estimation With Source-Position-Dependent Directional Weighting

Mattia Marella, and Shoichi Koyama

In Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), May 2026

(to appear)

arXiv Bib

@inproceedings{Marella:IWAENC2026,
  author = {Marella, Mattia and Koyama, Shoichi},
  title = {Learning-based Physics-Constrained Neural Kernel for Sound Field Estimation With Source-Position-Dependent Directional Weighting},
  booktitle = {Proceedings of International Workshop on Acoustic Signal Enhancement ({IWAENC})},
  year = {2026},
  note = {(to appear)}
}

Feedforward Active Speech Suppression Based on Time Series Prediction of Speech Signals Using Neural Networks

Manami Nishikata, and Shoichi Koyama

In Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Nov 2026

(to appear)
Spatial Active Noise Control Based on Sound Field Interpolation Incorporating Physical Constraints

Shoichi Koyama

In IN-NOVA Days, keynote speech, Apr 2026

HTML Slides

2025

APSIPA TSIP

Spatial Active Noise Control Based on Kernel Interpolation With Individual Directional Weighting

Kazuyuki Arikawa, Shoichi Koyama, and Hiroshi Saruwatari

APSIPA Transactions on Signal and Information Processing, Apr 2025

Bib HTML PDF

@article{Arikawa:APSIPA_TSIP2025,
  author = {Arikawa, Kazuyuki and Koyama, Shoichi and Saruwatari, Hiroshi},
  title = {Spatial Active Noise Control Based on Kernel Interpolation With Individual Directional Weighting},
  journal = {{APSIPA} Transactions on Signal and Information Processing},
  year = {2025},
  volume = {14},
  number = {1},
  doi = {10.1561/116.20250034},
}

IEEE OJSP

Spatial Upsampling of Head-Related Transfer Function Using Neural Network Conditioned on Source Position and Frequency

Yuki Ito, Tomohiko Nakamura, Shoichi Koyama, Shuichi Sakamoto, and Hiroshi Saruwatari

IEEE Open Journal of Signal Processing, Apr 2025

Bib HTML PDF Code

@article{Ito:IEEE_OJSP2025,
  author = {Ito, Yuki and Nakamura, Tomohiko and Koyama, Shoichi and Sakamoto, Shuichi and Saruwatari, Hiroshi},
  title = {Spatial Upsampling of Head-Related Transfer Function Using Neural Network Conditioned on Source Position and Frequency},
  journal = {{IEEE} Open Journal of Signal Processing},
  year = {2025},
  volume = {6},
  pages = {1109-1123},
  doi = {10.1109/OJSP.2025.3613132},
}

Sound Field Estimation: Theories and Applications (Foundations and Trends® in Signal Processing)

Natsuki Ueno, and Shoichi Koyama

Apr 2025

arXiv Bib HTML

@book{Ueno:FnT_SP2025,
  author = {Ueno, Natsuki and Koyama, Shoichi},
  title = {Sound Field Estimation: Theories and Applications (Foundations and Trends® in Signal Processing)},
  volume = {19},
  number = {1},
  pages = {1-98},
  year = {2025},
  publisher = {Now Publishers},
  doi = {10.1561/2000000121},
  isbn = {1638285241},
}

Physics-Informed Machine Learning For Sound Field Estimation: Fundamentals, state of the art, and challenges

Shoichi Koyama, Juliano G. C. Ribeiro, Tomohiko Nakamura, Natsuki Ueno, and Mirco Pezzoli

IEEE Signal Processing Magazine, Apr 2025

arXiv Bib HTML Code

@article{Koyama:IEEE_M_SP2025,
  author = {Koyama, Shoichi and Ribeiro, Juliano G. C. and Nakamura, Tomohiko and Ueno, Natsuki and Pezzoli, Mirco},
  title = {Physics-Informed Machine Learning For Sound Field Estimation: Fundamentals, state of the art, and challenges},
  journal = {{IEEE} Signal Processing Magazine},
  volume = {41},
  number = {6},
  pages = {60-71},
  year = {2025},
  doi = {10.1109/MSP.2024.3465896},
}

ICASSP

Past, Present, and Future of Spatial Audio and Room Acoustics

Shoichi Koyama, Enzo De Sena, Prasanga Samarasinghe, Mark R. P. Thomas, and Fabio Antonacci

In Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Apr 2025

[Invited]

arXiv Bib HTML

@inproceedings{Koyama:ICASSP2025,
  author = {Koyama, Shoichi and Sena, Enzo De and Samarasinghe, Prasanga and Thomas, Mark R. P. and Antonacci, Fabio},
  title = {Past, Present, and Future of Spatial Audio and Room Acoustics},
  booktitle = {Proceedings of {IEEE} International Conference on Acoustics, Speech, and Signal Processing ({ICASSP})},
  address = {Hyderabad},
  month = apr,
  year = {2025},
  doi = {10.1109/ICASSP49660.2025.10890366},
}

Active noise cancellation in space containing scattering objects based on kernel interpolation

Kota Yamano, Shoichi Koyama, and Hiroshi Saruwatari

In International Congress on Acoustics (ICA), May 2025

[Invited]

HTML

Learning Magnitude Distribution of Sound Fields via Conditioned Autoencoder

Shoichi Koyama, and Kenji Ishizuka

In Proceedings of Forum Acusticum, Jun 2025

[Invited]

arXiv Bib PDF

@inproceedings{Koyama:ForumAcusticum2025,
  author = {Koyama, Shoichi and Ishizuka, Kenji},
  booktitle = {Proceedings of Forum Acusticum},
  address = {M\'{a}laga},
  month = jun,
  year = {2025},
}

DAFx

Modeling the Impulse Response of Higher-Order Microphone Arrays using Differentiable Feedback Delay Networks

Riccardo Giampiccolo, Alessandro Ilic Mezza, Mirco Pezzoli, Shoichi Koyama, Alberto Bernardini, and Fabio Antonacci

In Proceedings of Inernational Conference on Digital Audio Effects (DAFx25), Sep 2025

Bib PDF

@inproceedings{Giampiccolo:DAFx2025,
  author = {Giampiccolo, Riccardo and Mezza, Alessandro Ilic and Pezzoli, Mirco and Koyama, Shoichi and Bernardini, Alberto and Antonacci, Fabio},
  title = {Modeling the Impulse Response of Higher-Order Microphone Arrays using Differentiable Feedback Delay Networks},
  booktitle = {Proceedings of Inernational Conference on Digital Audio Effects (DAFx25)},
  month = sep,
  year = {2025},
}

WASPAA

Head-Related Transfer Function Individualization Using Anthropometric Features and Spatially Independent Latent Representation

Ryan Niu, Shoichi Koyama, and Tomohiko Nakamura

In Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), Oct 2025

arXiv Bib HTML Code

@inproceedings{Niu:WASPAA2025,
  author = {Niu, Ryan and Koyama, Shoichi and Nakamura, Tomohiko},
  title = {Head-Related Transfer Function Individualization Using Anthropometric Features and Spatially Independent Latent Representation},
  booktitle = {Proceedings of {IEEE} Workshop on Applications of Signal Processing to Audio and Acoustics ({WASPAA})},
  month = oct,
  year = {2025},
  doi = {10.1109/WASPAA66052.2025.11230978},
}

WASPAA

Source and Sensor Placement for Sound Field Control Based on Mean Square Error with Prior Spatial Covariance

Shihori Kozuka, Shoichi Koyama, Hiroaki Itou, and Noriyoshi Kamado

In Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), Oct 2025

[Spotlight]

Bib HTML

@inproceedings{Kozuka:WASPAA2025,
  author = {Kozuka, Shihori and Koyama, Shoichi and Itou, Hiroaki and Kamado, Noriyoshi},
  title = {Source and Sensor Placement for Sound Field Control Based on Mean Square Error with Prior Spatial Covariance},
  booktitle = {Proceedings of {IEEE} Workshop on Applications of Signal Processing to Audio and Acoustics ({WASPAA})},
  month = oct,
  year = {2025},
  doi = {10.1109/WASPAA66052.2025.11230947},
}

WASPAA

Low-Rank Adaptation of Deep Prior Neural Networks For Sound Field Reconstruction

Mirco Pezzoli, Federico Miotello, Shoichi Koyama, and Fabio Antonacci

In Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), Oct 2025

arXiv Bib HTML

@inproceedings{Pezzoli:WASPAA2025,
  author = {Pezzoli, Mirco and Miotello, Federico and Koyama, Shoichi and Antonacci, Fabio},
  title = {Low-Rank Adaptation of Deep Prior Neural Networks For Sound Field Reconstruction},
  booktitle = {Proceedings of {IEEE} Workshop on Applications of Signal Processing to Audio and Acoustics ({WASPAA})},
  month = oct,
  year = {2025},
  doi = {10.1109/WASPAA66052.2025.11230985},
}

Towards a Practical System of Spatial Active Noise Control Using Kernel Interpolation

Denny Hermawanto, and Shoichi Koyama

In Joint Meeting of the Acoustical Society of America and Acoustical Society of Japan, Dec 2025

Bib HTML Video

@inproceedings{Hermawanto:ASA-ASJ_JM2025,
  author = {Hermawanto, Denny and Koyama, Shoichi},
  title = {Towards a Practical System of Spatial Active Noise Control Using Kernel Interpolation},
  booktitle = {Joint Meeting of the Acoustical Society of America and Acoustical Society of Japan},
  address = {Honolulu},
  month = dec,
  year = {2025},
  doi = {10.1121/2.0002344},
}

Physics-Informed Machine Learning in Sound Field Estimation: Fundamentals, State of the Art, and Challenges

Shoichi Koyama, and Mirco Pezzoli

In IEEE Signal Processing Society SLTC/AASP TC Webinar, Jun 2025

HTML Slides Video
Neural Spatial Audio Processing for Sound Field Analysis and Control

Shoichi Koyama

In Audio Analysis Workshop, keynote talk, Aug 2025

Slides
EUSIPCO

Physics-Informed Machine Learning For Audio Processing

Mirco Pezzoli, Diego Di Carlo, and Shoichi Koyama

In European Signal Processing Conference (EUSIPCO), Tutorial, Sep 2025

HTML Code Slides

2024

IEEE/ACM TASLP

Sound Field Estimation Based on Physics-Constrained Kernel Interpolation Adapted to Environment

Juliano G. C. Ribeiro, Shoichi Koyama, Ryosuke Horiuchi, and Hiroshi Saruwatari

IEEE/ACM Transactions on Audio, Speech, and Language Processing, Sep 2024

Bib HTML PDF Code

@article{Ribeiro:IEEE_ACM_J_ASLP2024,
  author = {Ribeiro, Juliano G. C. and Koyama, Shoichi and Horiuchi, Ryosuke and Saruwatari, Hiroshi},
  title = {Sound Field Estimation Based on Physics-Constrained Kernel Interpolation Adapted to Environment},
  journal = {{IEEE/ACM} Transactions on Audio, Speech, and Language Processing},
  volume = {32},
  pages = {4369-4383},
  year = {2024},
  doi = {10.1109/TASLP.2024.3467951},
}

EURASIP JASM

Physics-constrained adaptive kernel interpolation for region-to-region acoustic transfer function: a Bayesian approach

Juliano G. C. Ribeiro, Shoichi Koyama, and Hiroshi Saruwatari

EURASIP Journal on Audio, Speech, and Music Processing, Sep 2024

[Invited]

Bib HTML PDF

@article{Ribeiro:EURASIP_JASM2024,
  author = {Ribeiro, Juliano G. C. and Koyama, Shoichi and Saruwatari, Hiroshi},
  title = {Physics-constrained adaptive kernel interpolation for region-to-region acoustic transfer function: a Bayesian approach},
  journal = {{EURASIP} Journal on Audio, Speech, and Music Processing},
  number = {43},
  year = {2024},
  doi = {10.1186/s13636-024-00362-6},
}

音響学会誌

Fundamentals of spatial active noies control: From point control to region control

Shoichi Koyama

Journal of the Acoustical Society of Japan, Sep 2024

(in Japanese)

Bib HTML

@article{Koyama:ASJ_J2024_en,
  author = {Koyama, Shoichi},
  title = {Fundamentals of spatial active noies control: From point control to region control},
  journal = {Journal of the Acoustical Society of Japan},
  volume = {80},
  number = {5},
  doi = {10.20697/jasj.80.5_274},
  pages = {274-281},
  year = {2024},
  note = {(in Japanese)}
}

ICASSP

Localizing Acoustic Energy in Sound Field Synthesis by Directionally Weighted Exterior Radiation Suppression

Yoshihide Tomita, Shoichi Koyama, and Hiroshi Saruwatari

In Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Apr 2024

arXiv Bib HTML Slides

@inproceedings{Tomita:ICASSP2024,
  author = {Tomita, Yoshihide and Koyama, Shoichi and Saruwatari, Hiroshi},
  title = {Localizing Acoustic Energy in Sound Field Synthesis by Directionally Weighted Exterior Radiation Suppression},
  booktitle = {Proceedings of {IEEE} International Conference on Acoustics, Speech, and Signal Processing ({ICASSP})},
  address = {Seoul, Republic of Korea},
  month = apr,
  year = {2024},
  doi = {10.1109/ICASSP48485.2024.10448224},
  pages = {321-325},
}

IWAENC

Sound field estimation in region including scattering objects based on kernel interpolation: Evaluation for various scatterers

Shihori Kozuka, Shoichi Koyama, Hiroaki Itou, and Noriyoshi Kamado

In Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), Sep 2024

Bib HTML

@inproceedings{Kozuka:IWAENC2024,
  author = {Kozuka, Shihori and Koyama, Shoichi and Itou, Hiroaki and Kamado, Noriyoshi},
  title = {Sound field estimation in region including scattering objects based on kernel interpolation: Evaluation for various scatterers},
  booktitle = {Proceedings of International Workshop on Acoustic Signal Enhancement ({IWAENC})},
  month = sep,
  year = {2024},
  pages = {324-328},
  doi = {10.1109/IWAENC61483.2024.10694564},
}

IWAENC

Sound Field Estimation Using Deep Kernel Learning Regularized by the Wave Equation

David Sundström, Shoichi Koyama, and Andreas Jakobsson

In Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), Sep 2024

arXiv Bib HTML Code

@inproceedings{Sundstroem:IWAENC2024,
  author = {Sundstr\"{o}m, David and Koyama, Shoichi and Jakobsson, Andreas},
  title = {Sound Field Estimation Using Deep Kernel Learning Regularized by the Wave Equation},
  booktitle = {Proceedings of International Workshop on Acoustic Signal Enhancement ({IWAENC})},
  month = sep,
  year = {2024},
  pages = {319-323},
  doi = {10.1109/IWAENC61483.2024.10694575},
}

Physics-Informed Machine Learning For Sound Field Estimation and Control

Shoichi Koyama

In Polytechnic Uniersity of Milan, seminar talk, Sep 2024

HTML Slides
Physics-Informed Machine Learning For Sound Field Estimation and Control

Shoichi Koyama

In Technical University of Denmark, seminar talk, Sep 2024
Physics-Informed Machine Learning For Sound Field Estimation and Control

Shoichi Koyama

In Lund University, seminar talk, Sep 2024
Capturing and Reproducing Spatial Sound: Physics-based Approach to VR/AR audio

Shoichi Koyama

In Multiple Input Modalities and Sensations for VR/AR Interactions (MIMSVAI, in conjunction with UbiComp/ISWC), Keynote talk, Oct 2024

HTML Slides
Physics-Informed Machine Learning For Sound Field Estimation and Control

Shoichi Koyama

In The Australian National University, seminar talk, Oct 2024
Audio Processing Technology For Delivering Sounds You Want to Hear and Preventing Sounds You Don’t Want to Hear

Shoichi Koyama

In 13th US-Japan Hi-Tech Industrialization Forum, Dec 2024

2023

Weighted Pressure and Mode Matching for Sound Field Reproduction: Theoretical and Experimental Comparisons

Shoichi Koyama, Keisuke Kimura, and Natsuki Ueno

Journal of the Audio Engineering Society, Dec 2023

[Invited]

Bib HTML PDF Code

@article{Koyama:JAES2023,
  author = {Koyama, Shoichi and Kimura, Keisuke and Ueno, Natsuki},
  title = {Weighted Pressure and Mode Matching for Sound Field Reproduction: Theoretical and Experimental Comparisons},
  journal = {Journal of the Audio Engineering Society},
  volume = {71},
  number = {4},
  pages = {173-185},
  year = {2023},
  doi = {10.17743/jaes.2022.0058},
}

IEEE/ACM TASLP

Amplitude Matching for Multizone Sound Field Control

Takumi Abe, Shoichi Koyama, Natsuki Ueno, and Hiroshi Saruwatari

IEEE/ACM Transactions on Audio, Speech, and Language Processing, Dec 2023

Bib HTML PDF Code Slides Video

@article{Abe:IEEE_ACM_J_ASLP2023,
  author = {Abe, Takumi and Koyama, Shoichi and Ueno, Natsuki and Saruwatari, Hiroshi},
  title = {Amplitude Matching for Multizone Sound Field Control},
  journal = {{IEEE/ACM} Transactions on Audio, Speech, and Language Processing},
  volume = {31},
  pages = {656-669},
  year = {2023},
  doi = {10.1109/TASLP.2022.3231715},
}

ICASSP

Spatial active noise control method based on sound field interpolation from reference microphone signals

Kazuyuki Arikawa, Shoichi Koyama, and Hiroshi Saruwatari

In Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Jun 2023

arXiv Bib HTML Slides Video

@inproceedings{Arikawa:ICASSP2023,
  author = {Arikawa, Kazuyuki and Koyama, Shoichi and Saruwatari, Hiroshi},
  title = {Spatial active noise control method based on sound field interpolation from reference microphone signals},
  booktitle = {Proceedings of {IEEE} International Conference on Acoustics, Speech, and Signal Processing ({ICASSP})},
  address = {Rhodes island, Greece},
  month = jun,
  year = {2023},
  doi = {10.1109/ICASSP49357.2023.10097189},
}

ICASSP

Kernel interpolation of acoustic transfer functions with adaptive kernel for directed and residual reverberations

Juliano G. C. Ribeiro, Shoichi Koyama, and Hiroshi Saruwatari

In Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Jun 2023

arXiv Bib HTML Slides Video

@inproceedings{Ribeiro:ICASSP2023,
  author = {Ribeiro, Juliano G. C. and Koyama, Shoichi and Saruwatari, Hiroshi},
  title = {Kernel interpolation of acoustic transfer functions with adaptive kernel for directed and residual reverberations},
  booktitle = {Proceedings of {IEEE} International Conference on Acoustics, Speech, and Signal Processing ({ICASSP})},
  address = {Rhodes island, Greece},
  month = jun,
  year = {2023},
  doi = {10.1109/ICASSP49357.2023.10095429},
}

EUSIPCO

Multichannel Active Noise Control with Exterior Radiation Suppression Based on Riemannian Optimization

Takaaki Kojima, Kazuyuki Arikawa, Shoichi Koyama, and Hiroshi Saruwatari

In Proceedings of European Signal Processing Conference (EUSIPCO), Sep 2023

arXiv Bib HTML

@inproceedings{Kojima:EUSIPCO2023,
  author = {Kojima, Takaaki and Arikawa, Kazuyuki and Koyama, Shoichi and Saruwatari, Hiroshi},
  title = {Multichannel Active Noise Control with Exterior Radiation Suppression Based on Riemannian Optimization},
  booktitle = {Proceedings of European Signal Processing Conference ({EUSIPCO})},
  address = {Helsinki, Finland},
  month = sep,
  year = {2023},
  pages = {96-100},
  doi = {10.23919/EUSIPCO58844.2023.10289919},
}

WASPAA

Perceptual Quality Enhancement of Sound Field Synthesis Based on Combination of Pressure and Amplitude Matching

Keisuke Kimura, Shoichi Koyama, and Hiroshi Saruwatari

In Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), Oct 2023

arXiv Bib HTML Slides Video

@inproceedings{Kimura:WASPAA2023,
  author = {Kimura, Keisuke and Koyama, Shoichi and Saruwatari, Hiroshi},
  title = {Perceptual Quality Enhancement of Sound Field Synthesis Based on Combination of Pressure and Amplitude Matching},
  booktitle = {Proceedings of {IEEE} Workshop on Applications of Signal Processing to Audio and Acoustics ({WASPAA})},
  month = oct,
  year = {2023},
  doi = {10.1109/WASPAA58266.2023.10248106},
}

WASPAA

Kernel Interpolation of Incident Sound Field in Region Including Scattering Objects

Shoichi Koyama, Masaki Nakada, Juliano G. C. Ribeiro, and Hiroshi Saruwatari

In Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), Oct 2023

arXiv Bib HTML Slides Video

@inproceedings{Koyama:WASPAA2023,
  author = {Koyama, Shoichi and Nakada, Masaki and Ribeiro, Juliano G. C. and Saruwatari, Hiroshi},
  title = {Kernel Interpolation of Incident Sound Field in Region Including Scattering Objects},
  booktitle = {Proceedings of {IEEE} Workshop on Applications of Signal Processing to Audio and Acoustics ({WASPAA})},
  month = oct,
  year = {2023},
  doi = {10.1109/WASPAA58266.2023.10248156},
}

Sound Field Analysis and Synthesis: Recent Advances and Applications to Spatial Audio

Shoichi Koyama

In Aalto University, Acoustics Lab, seminar talk, Sep 2023