Reo YONEYAMA

Photograph of me

Ph.D. in Informatics

R&D Engineer, CyberAgent, Inc.
yoneyama_reo [at] cyberagent.co.jp

EDUCATION

Apr. 2023 - Mar. 2026
Ph.D., Department of Intelligent Systems, Graduate School of Informatics, Nagoya University, Japan (Supervisor: Prof. Tomoki Toda)
Apr. 2021 - Mar. 2026
TMI WISE Program: Graduate Program for Lifestyle Revolution Based on Transdisciplinary Mobility Innovation
Apr. 2021 - Mar. 2023
M.S., Department of Intelligent Systems, Graduate School of Informatics, Nagoya University, Japan (Supervisor: Prof. Tomoki Toda)
Apr. 2017 - Mar. 2021
B.S., Department of Computer Science, School of Informatics, Nagoya University, Japan
Mar. 2017
Graduated from Tochigi Prefectural Kanuma High School, Japan

WORK EXPERIENCE

Apr. 2026 - Current
R&D Engineer, CyberAgent, Inc., Japan
May 2025 - Mar. 2026
R&D Internship, Speech & Language Team, SB Intuitions Corp., Japan
July. 2024 - Mar. 2025
Joint Research Project with the ASP team, LY Corporation, Japan
May 2022 - Oct. 2025
R&D Internship, TARVO Inc., Japan
Feb. 2023 - Mar. 2024
Joint Research Project with the ASP team, LY Corporation, Japan
May 2021 - Jan. 2023
Research Internship, Voice Team, LINE Corporation, Japan
Dec. 2019 - Apr. 2021
R&D Internship, Acompany Co., Ltd., Japan

JOURNALS

IEEE TASLP
Wavehax: Aliasing-Free Neural Waveform Synthesis Based on 2D Convolution and Harmonic Prior for Reliable Complex Spectrogram Estimation [link]

Reo Yoneyama, Atsushi Miyashita, Ryuichi Yamamoto, Tomoki Toda

IEEE/ACM TASLP
High-Fidelity and Pitch-Controllable Neural Vocoder Based on Unified Source-Filter Networks [link]

Reo Yoneyama, Yi-Chiao Wu, Tomoki Toda

CONFERENCE PROCEEDINGS (PEER-REVIEWED)

EUSIPCO 2025
VAE-SiFiGAN: Source-Filter HiFi-GAN Based on Variational Autoencoder Representations with Enhanced Pitch Controllability

Kenichi Ogita, Reo Yoneyama, Wen-Chin Huang, Tomoki Toda

INTERSPEECH 2025
Comparative Analysis of Fast and High-Fidelity Neural Vocoders for Low-Latency Streaming Synthesis in Resource-Constrained Environments

Reo Yoneyama, Masaya Kawamura, Ryo Terashima, Ryuichi Yamamoto, Tomoki Toda

ASRU 2023
A Comparative Study of Voice Conversion Models with Large-Scale Speech and Singing Data: The T13 Systems for the Singing Voice Conversion Challenge 2023 [link]

Ryuichi Yamamoto, Reo Yoneyama, Lester Phillip Violeta, Wen-Chin Huang, Tomoki Toda

IEEE ICASSP 2023
Source-Filter HiFi-GAN: Fast and Pitch Controllable High-Fidelity Neural Vocoder [link]

Reo Yoneyama, Yi-Chiao Wu, Tomoki Toda

IEEE ICASSP 2023
Nonparallel High-Quality Audio Super Resolution with Domain Adaptation and Resampling CycleGANs [link]

Reo Yoneyama, Ryuichi Yamamoto, Kentaro Tachibana

IEEE ICASSP 2023
NNSVS: A Neural Network-Based Singing Voice Synthesis Toolkit [link]

Ryuichi Yamamoto, Reo Yoneyama, Tomoki Toda

INTERSPEECH 2022
Unified Source-Filter GAN with Harmonic-plus-Noise Source Excitation Generation [link]

Reo Yoneyama, Yi-Chiao Wu, Tomoki Toda

INTERSPEECH 2021
Unified Source-Filter GAN: Unified Source-Filter Network Based On Factorization of Quasi-Periodic Parallel WaveGAN [link]

Reo Yoneyama, Yi-Chiao Wu, Tomoki Toda

CONFERENCE PROCEEDINGS (NON PEER-REVIEWED)

ASJ Spring 2025
Aliasing-Free Neural Vocoder Based on Complex Spectrogram Estimation with Harmonic Signal Modeling and 2D Convolution

Reo Yoneyama, Atsushi Miyashita, Ryuichi Yamamoto, Tomoki Toda

ASJ Spring 2025
VAE-SiFi-GAN: SiFi-GAN Based on Variational Autoencoder Representations

Kenichi Ogita, Reo Yoneyama, Wen-Chin Huang, Tomoki Toda

ASJ Autumn 2023
NNSVS: A Neural Network-Based Singing Voice Synthesis Toolkit [link]

Ryuichi Yamamoto, Reo Yoneyama, Tomoki Toda

ASJ Spring 2023
Source-Filter-Architecture-Based HiFi-GAN

Reo Yoneyama, Yi-Chiao Wu, Tomoki Toda

ASJ Spring 2022
Improvement of Unified Source-Filter Network with Adversarial Learning

Reo Yoneyama, Yi-Chiao Wu, Tomoki Toda

ASJ Autumn 2021
Unified Source-Filter Network with Adversarial Learning

Reo Yoneyama, Yi-Chiao Wu, Tomoki Toda

IEICE Tech. Rep. 2021
A unified source-filter network for neural vocoder [paper]

Reo Yoneyama, Yi-Chiao Wu, Tomoki Toda

AWARDS

Mar. 2026
Excellent Doctor Award, Graduate School of Informatics, Nagoya University, Japan
Jan. 2024
IEEE SPS Japan Student Conference Paper Award 2023 [link]
Oct. 2022
2022 Tokai Area Speech-Related Research Laboratory Master's Midterm Presentation Q&A Award
Sep. 2021
23rd Japan Acoustics Society Student Excellent Presentation Award [link]
Nov. 2019
Domestic Qualifier of International Collegiate Programming Contest (ICPC) Asia Yokohama Regional 2019 [link]

GRANTS

Apr. 2024 - Mar. 2026
Japan Society for Promotion of Science (JSPS) research fellowship for young scientists (DC2) [link]
Apr. 2023 - Mar. 2026
Nagoya University Interdisciplinary Frontier Fellowship [link]
Apr. 2023 - Mar. 2026
TMI WISE Program [link]

LANGUAGES

Japanese
Native
English
Intermediate
TOEIC Listening & Reading Test (Taken in May 2022)
Score: 865 (Listening: 430, Reading: 435)

ACTIVITIES

June 2025
Invited talk at the 143rd MUS & 156th SLP Joint Workshop [slides]
Apr. 2025 - Mar. 2026
Technical Advising for TTS system development at DubGuild Inc.
Dec. 2023 - Oct. 2025
Technical Advising for Melisma Software, Developed by Sakana Nakasako [paper]
AtCoder
chomeyama (Highest rate: 1545)
Nov. 2020
ICPC Asia Yokohama regional
Nov. 2019
ICPC Asia Yokohama regional
Oct. 2019
JPHACKS @ Nagoya
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