People
Ryuichi Yamamoto Researcher
A software engineer/researcher working on speech synthesis. His research interests include statistical speech synthesis, voice conversion, singing voice synthesis, and machine learning. Before joining LY Corporation (formerly LINE Corporation), he worked in music signal processing, music information retrieval, and computer vision.
Awards
Publications
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- CONFERENCE (DOMESTIC)
- BitTTS: 1.58-bit量子化と重みインデキシングによる軽量なテキスト音声合成
- 川村 真也, 蓮実 拓也, 白旗 悠真, 山本 龍一
- 日本音響学会 2025年秋季研究発表会
- September 11, 2025
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- CONFERENCE (DOMESTIC)
- 音声からの音素・韻律ラベルの獲得とその応用
- 白旗 悠真, 朴 炳宣, 山本 龍一
- 日本音響学会 2025年秋季研究発表会
- September 10, 2025
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- CONFERENCE (INTERNATIONAL)
- BitTTS: Highly Compact Text-to-Speech Using 1.58-bit Quantization and Weight Indexing
- Masaya Kawamura, Takuya Hasumi, Yuma Shirahata, Ryuichi Yamamoto
- The 26th Annual Conference of the International Speech Communication Association
- August 21, 2025
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- CONFERENCE (INTERNATIONAL)
- Comparative Analysis of Fast and High-Fidelity Neural Vocoders for Low-Latency Streaming Synthesis in Resource-Constrained Environments
- Reo Yoneyama (Nagoya University), Masaya Kawamura, Ryo Terashima, Ryuichi Yamamoto (Nagoya University/LY Corporation), Tomoki Toda (Nagoya University)
- The 26th Annual Conference of the International Speech Communication Association
- August 21, 2025
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- CONFERENCE (INTERNATIONAL)
- Grapheme-Coherent Phonemic and Prosodic Annotation of Speech by Implicit and Explicit Grapheme Conditioning
- Hien Ohnaka (Nara Institute of Science and Technology), Yuma Shirahata, Byeongseon Park, Ryuichi Yamamoto
- The 26th Annual Conference of the International Speech Communication Association
- August 17, 2025
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- CONFERENCE (DOMESTIC)
- Wavehax：調波信号モデルと２次元畳み込みを用いた複素スペクトログラム推定に基づくエイリアシングフリーニューラルボコーダ
- 米山 怜於 (名大), 宮下 敦志 (名大), 山本 龍一, 戸田 智基 (名大)
- 日本音響学会 2025年春季研究発表会
- March 17, 2025
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- OTHERS (INTERNATIONAL)
- Description-based Controllable Text-to-Speech with Cross-Lingual Voice Control
- Ryuichi Yamamoto, Yuma Shirahata, Masaya Kawamura, Kentaro Tachibana
- arXiv.org
- September 27, 2024
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- CONFERENCE (INTERNATIONAL)
- Audio-conditioned phonemic and prosodic annotation for building text-to-speech models from unlabeled speech data
- Yuma Shirahata, Byeongseon Park, Ryuichi Yamamoto, Kentaro Tachibana
- The 25th Annual Conference of the International Speech Communication Association
- September 04, 2024
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- CONFERENCE (DOMESTIC)
- 感情音声合成のためのアラインメント手法の比較
- 蓮実 拓也, 白旗 悠真, Welly Naptali, 山本 龍一, Eunwoo Song (NAVER Cloud), 橘 健太郎, Jae-Min Kim (NAVER Cloud)
- 日本音響学会 2024年秋季研究発表会
- September 04, 2024
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- CONFERENCE (INTERNATIONAL)
- LibriTTS-P: A Corpus with Speaking Style and Speaker Identity Prompts for Text-to-Speech and Style Captioning
- Masaya Kawamura, Ryuichi Yamamoto, Yuma Shirahata, Takuya Hasumi, Kentaro Tachibana
- The 25th Annual Conference of the International Speech Communication Association
- September 03, 2024