Kazuhiro Kobayashi

80 papers A 16B 1C 2Misc 10Journal 29Unranked 22
YearRankTypeTitle / Venue / Authors
2025 — conf
Investigation of the Effectiveness of Converted Speech Auditory Feedback in Low-Latency Real-Time Voice Conversion.
APSIPA
Kiseki Niwa, Kazuhiro Kobayashi, Tomoki Toda
2025 J jnl
Resolving Domain Mismatches in Electrolaryngeal Speech Enhancement With Linguistic Intermediates.
IEEE J. Sel. Top. Signal Process.
Lester Phillip Violeta, Wen-Chin Huang, Ding Ma, Ryuichi Yamamoto, Kazuhiro Kobayashi, Tomoki Toda
2024 Misc conf
Electrolaryngeal Speech Intelligibility Enhancement through Robust Linguistic Encoders.
ICASSP
Lester Phillip Violeta, Wen-Chin Huang, Ding Ma, Ryuichi Yamamoto, Kazuhiro Kobayashi, Tomoki Toda
2024 — conf
Robust Sequence-to-sequence Voice Conversion for Electrolaryngeal Speech Enhancement in Noisy and Reverberant Conditions.
EMBC
Ding Ma, Yeonjong Choi, Fengji Li, Chao Xie, Kazuhiro Kobayashi, Tomoki Toda
2023 J jnl
AAS-VC: On the Generalization Ability of Automatic Alignment Search based Non-autoregressive Sequence-to-sequence Voice Conversion.
CoRR
Wen-Chin Huang, Kazuhiro Kobayashi, Tomoki Toda
2023 J jnl
Electrolaryngeal Speech Intelligibility Enhancement Through Robust Linguistic Encoders.
CoRR
Lester Phillip Violeta, Wen-Chin Huang, Ding Ma, Ryuichi Yamamoto, Kazuhiro Kobayashi, Tomoki Toda
2023 Misc conf
Low-Latency Electrolaryngeal Speech Enhancement Based on Fastspeech2-Based Voice Conversion and Self-Supervised Speech Representation.
ICASSP
Kazuhiro Kobayashi, Tomoki Hayashi, Tomoki Toda
2022 Misc conf
An Investigation of Streaming Non-Autoregressive sequence-to-sequence Voice Conversion.
ICASSP
Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2022 — conf
Two-Stage Training Method for Japanese Electrolaryngeal Speech Enhancement Based on Sequence-to-Sequence Voice Conversion.
SLT
Ding Ma, Lester Phillip Violeta, Kazuhiro Kobayashi, Tomoki Toda
2022 J jnl
Two-stage training method for Japanese electrolaryngeal speech enhancement based on sequence-to-sequence voice conversion.
CoRR
Ding Ma, Lester Phillip Violeta, Kazuhiro Kobayashi, Tomoki Toda
2021 A conf
A Preliminary Study of a Two-Stage Paradigm for Preserving Speaker Identity in Dysarthric Voice Conversion.
Interspeech
Wen-Chin Huang, Kazuhiro Kobayashi, Yu-Huai Peng, Ching-Feng Liu, Yu Tsao, Hsin-Min Wang, Tomoki Toda
2021 J jnl
A Preliminary Study of a Two-Stage Paradigm for Preserving Speaker Identity in Dysarthric Voice Conversion.
CoRR
Wen-Chin Huang, Kazuhiro Kobayashi, Yu-Huai Peng, Ching-Feng Liu, Yu Tsao, Hsin-Min Wang, Tomoki Toda
2021 J jnl
A generalized parametric divisor method for political apportionment.
Int. Trans. Oper. Res.
Tatsuo Oyama, Nicholas G. Hall, Kazuhiro Kobayashi
2021 Misc conf
Crank: An Open-Source Software for Nonparallel Voice Conversion Based on Vector-Quantized Variational Autoencoder.
ICASSP
Kazuhiro Kobayashi, Wen-Chin Huang, Yi-Chiao Wu, Patrick Lumban Tobing, Tomoki Hayashi, Tomoki Toda
2021 — conf
Mandarin Electro-Laryngeal Speech Enhancement based on Statistical Voice Conversion and Manual Tone Control.
APSIPA ASC
Zhaopeng Qian, Haijun Niu, Li Wang, Kazuhiro Kobayashi, Shaochuan Zhang, Tomoki Toda
2021 C conf
Mandarin Electrolaryngeal Speech Voice Conversion with Sequence-to-Sequence Modeling.
ASRU
Ming-Chi Yen, Wen-Chin Huang, Kazuhiro Kobayashi, Yu-Huai Peng, Shu-Wei Tsai, Yu Tsao, Tomoki Toda, Jyh-Shing Roger Jang, Hsin-Min Wang
2021 Misc conf
Non-Autoregressive Sequence-To-Sequence Voice Conversion.
ICASSP
Tomoki Hayashi, Wen-Chin Huang, Kazuhiro Kobayashi, Tomoki Toda
2021 J jnl
Non-autoregressive sequence-to-sequence voice conversion.
CoRR
Tomoki Hayashi, Wen-Chin Huang, Kazuhiro Kobayashi, Tomoki Toda
2021 J jnl
Quasi-Periodic WaveNet: An Autoregressive Raw Waveform Generative Model With Pitch-Dependent Dilated Convolution Neural Network.
IEEE ACM Trans. Audio Speech Lang. Process.
Yi-Chiao Wu, Tomoki Hayashi, Patrick Lumban Tobing, Kazuhiro Kobayashi, Tomoki Toda
2021 J jnl
crank: An Open-Source Software for Nonparallel Voice Conversion Based on Vector-Quantized Variational Autoencoder.
CoRR
Kazuhiro Kobayashi, Wen-Chin Huang, Yi-Chiao Wu, Patrick Lumban Tobing, Tomoki Hayashi, Tomoki Toda
2020 A conf
Cyclic Spectral Modeling for Unsupervised Unit Discovery into Voice Conversion with Excitation and Waveform Modeling.
INTERSPEECH
Patrick Lumban Tobing, Tomoki Hayashi, Yi-Chiao Wu, Kazuhiro Kobayashi, Tomoki Toda
2020 Misc conf
Efficient Shallow Wavenet Vocoder Using Multiple Samples Output Based on Laplacian Distribution and Linear Prediction.
ICASSP
Patrick Lumban Tobing, Yi-Chiao Wu, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2020 — conf
Implementation of low-latency electrolaryngeal speech enhancement based on multi-task CLDNN.
EUSIPCO
Kazuhiro Kobayashi, Tomoki Toda
2020 A conf
Intelligibility Enhancement Based on Speech Waveform Modification Using Hearing Impairment.
INTERSPEECH
Shu Hikosaka, Shogo Seki, Tomoki Hayashi, Kazuhiro Kobayashi, Kazuya Takeda, Hideki Banno, Tomoki Toda
2020 J jnl
Non-Parallel Voice Conversion System With WaveNet Vocoder and Collapsed Speech Suppression.
IEEE Access
Yi-Chiao Wu, Patrick Lumban Tobing, Kazuhiro Kobayashi, Tomoki Hayashi, Tomoki Toda
2020 J jnl
Non-parallel Voice Conversion System with WaveNet Vocoder and Collapsed Speech Suppression.
CoRR
Yi-Chiao Wu, Patrick Lumban Tobing, Kazuhiro Kobayashi, Tomoki Hayashi, Tomoki Toda
2020 — conf
Phoneme Embeddings on Predicting Fundamental Frequency Pattern for Electrolaryngeal Speech.
APSIPA
Mohammad Eshghi, Kazuhiro Kobayashi, Kou Tanaka, Hirokazu Kameoka, Tomoki Toda
2020 J jnl
Quasi-Periodic WaveNet: An Autoregressive Raw Waveform Generative Model with Pitch-dependent Dilated Convolution Neural Network.
CoRR
Yi-Chiao Wu, Tomoki Hayashi, Patrick Lumban Tobing, Kazuhiro Kobayashi, Tomoki Toda
2020 — conf
The NU Voice Conversion System for the Voice Conversion Challenge 2020: On the Effectiveness of Sequence-to-sequence Models and Autoregressive Neural Vocoders.
Blizzard Challenge / Voice Conversion Challenge
Wen-Chin Huang, Patrick Lumban Tobing, Yi-Chiao Wu, Kazuhiro Kobayashi, Tomoki Toda
2020 J jnl
The NU Voice Conversion System for the Voice Conversion Challenge 2020: On the Effectiveness of Sequence-to-sequence Models and Autoregressive Neural Vocoders.
CoRR
Wen-Chin Huang, Patrick Lumban Tobing, Yi-Chiao Wu, Kazuhiro Kobayashi, Tomoki Toda
2019 J jnl
A route generation algorithm for an optimal fuel routing problem between two single ports.
Int. Trans. Oper. Res.
Mirai Tanaka, Kazuhiro Kobayashi
2019 — conf
An Investigation of Features for Fundamental Frequency Pattern Prediction in Electrolaryngeal Speech Enhancement.
SSW
Mohammad Eshghi, Kou Tanaka, Kazuhiro Kobayashi, Hirokazu Kameoka, Tomoki Toda
2019 A conf
Development of a Real-time Bionic Voice Generation System based on Statistical Excitation Prediction.
ASSETS
Farzaneh Ahmadi, Kazuhiro Kobayashi, Tomoki Toda
2019 — conf
Generalization of Spectrum Differential based Direct Waveform Modification for Voice Conversion.
SSW
Wen-Chin Huang, Yi-Chiao Wu, Kazuhiro Kobayashi, Yu-Huai Peng, Hsin-Te Hwang, Patrick Lumban Tobing, Yu Tsao, Hsin-Min Wang, Tomoki Toda
2019 — conf
Improving Singing Aid System for Laryngectomees With Statistical Voice Conversion and VAE-SPACE.
ISMIR
Li Li, Tomoki Toda, Kazuho Morikawa, Kazuhiro Kobayashi, Shoji Makino
2019 A conf
Investigation of F0 Conditioning and Fully Convolutional Networks in Variational Autoencoder Based Voice Conversion.
INTERSPEECH
Wen-Chin Huang, Yi-Chiao Wu, Chen-Chou Lo, Patrick Lumban Tobing, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda, Yu Tsao, Hsin-Min Wang
2019 J jnl
Investigation of F0 conditioning and Fully Convolutional Networks in Variational Autoencoder based Voice Conversion.
CoRR
Wen-Chin Huang, Yi-Chiao Wu, Chen-Chou Lo, Patrick Lumban Tobing, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda, Yu Tsao, Hsin-Min Wang
2019 A conf
Non-Parallel Voice Conversion with Cyclic Variational Autoencoder.
INTERSPEECH
Patrick Lumban Tobing, Yi-Chiao Wu, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2019 J jnl
Non-Parallel Voice Conversion with Cyclic Variational Autoencoder.
CoRR
Patrick Lumban Tobing, Yi-Chiao Wu, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2019 A conf
Quasi-Periodic WaveNet Vocoder: A Pitch Dependent Dilated Convolution Model for Parametric Speech Generation.
INTERSPEECH
Yi-Chiao Wu, Tomoki Hayashi, Patrick Lumban Tobing, Kazuhiro Kobayashi, Tomoki Toda
2019 J jnl
Quasi-Periodic WaveNet Vocoder: A Pitch Dependent Dilated Convolution Model for Parametric Speech Generation.
CoRR
Yi-Chiao Wu, Tomoki Hayashi, Patrick Lumban Tobing, Kazuhiro Kobayashi, Tomoki Toda
2019 — conf
Refined WaveNet Vocoder for Variational Autoencoder Based Voice Conversion.
EUSIPCO
Wen-Chin Huang, Yi-Chiao Wu, Hsin-Te Hwang, Patrick Lumban Tobing, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda, Yu Tsao, Hsin-Min Wang
2019 A conf
Robustness of Statistical Voice Conversion Based on Direct Waveform Modification Against Background Sounds.
INTERSPEECH
Yusuke Kurita, Kazuhiro Kobayashi, Kazuya Takeda, Tomoki Toda
2019 J jnl
Statistical Voice Conversion with Quasi-Periodic WaveNet Vocoder.
CoRR
Yi-Chiao Wu, Patrick Lumban Tobing, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2019 — conf
Statistical Voice Conversion with Quasi-periodic WaveNet Vocoder.
SSW
Yi-Chiao Wu, Patrick Lumban Tobing, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2019 J jnl
Voice Conversion With CycleRNN-Based Spectral Mapping and Finely Tuned WaveNet Vocoder.
IEEE Access
Patrick Lumban Tobing, Yi-Chiao Wu, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2019 Misc conf
Voice Conversion with Cyclic Recurrent Neural Network and Fine-tuned Wavenet Vocoder.
ICASSP
Patrick Lumban Tobing, Yi-Chiao Wu, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2018 — conf
An Evaluation of Deep Spectral Mappings and WaveNet Vocoder for Voice Conversion.
SLT
Patrick Lumban Tobing, Tomoki Hayashi, Yi-Chiao Wu, Kazuhiro Kobayashi, Tomoki Toda
2018 A conf
Collapsed Speech Segment Detection and Suppression for WaveNet Vocoder.
INTERSPEECH
Yi-Chiao Wu, Kazuhiro Kobayashi, Tomoki Hayashi, Patrick Lumban Tobing, Tomoki Toda
2018 J jnl
Collapsed speech segment detection and suppression for WaveNet vocoder.
CoRR
Yi-Chiao Wu, Kazuhiro Kobayashi, Tomoki Hayashi, Patrick Lumban Tobing, Tomoki Toda
2018 — conf
Electrolaryngeal Speech Enhancement with Statistical Voice Conversion based on CLDNN.
EUSIPCO
Kazuhiro Kobayashi, Tomoki Toda
2018 J jnl
Intra-gender statistical singing voice conversion with direct waveform modification using log-spectral differential.
Speech Commun.
Kazuhiro Kobayashi, Tomoki Toda, Satoshi Nakamura
2018 — conf
NU Voice Conversion System for the Voice Conversion Challenge 2018.
Odyssey
Patrick Lumban Tobing, Yi-Chiao Wu, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2018 J jnl
Refined WaveNet Vocoder for Variational Autoencoder Based Voice Conversion.
CoRR
Wen-Chin Huang, Yi-Chiao Wu, Hsin-Te Hwang, Patrick Lumban Tobing, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda, Yu Tsao, Hsin-Min Wang
2018 — conf
The NU Non-Parallel Voice Conversion System for the Voice Conversion Challenge 2018.
Odyssey
Yi-Chiao Wu, Patrick Lumban Tobing, Tomoki Hayashi, Kazuhiro Kobayashi, Tomoki Toda
2018 — conf
sprocket: Open-Source Voice Conversion Software.
Odyssey
Kazuhiro Kobayashi, Tomoki Toda
2017 — conf
An investigation of how to design control parameters for statistical voice timbre control.
APSIPA
Kazutaka Kubo, Kazuhiro Kobayashi, Tomoki Toda, Graham Neubig, Sakriani Sakti, Satoshi Nakamura
2017 C conf
An investigation of multi-speaker training for wavenet vocoder.
ASRU
Tomoki Hayashi, Akira Tamamori, Kazuhiro Kobayashi, Kazuya Takeda, Tomoki Toda
2017 J jnl
Articulatory Controllable Speech Modification Based on Statistical Inversion and Production Mappings.
IEEE ACM Trans. Audio Speech Lang. Process.
Patrick Lumban Tobing, Kazuhiro Kobayashi, Tomoki Toda
2017 A conf
Speaker-Dependent WaveNet Vocoder.
INTERSPEECH
Akira Tamamori, Tomoki Hayashi, Kazuhiro Kobayashi, Kazuya Takeda, Tomoki Toda
2017 A conf
Statistical Voice Conversion with WaveNet-Based Waveform Generation.
INTERSPEECH
Kazuhiro Kobayashi, Tomoki Hayashi, Akira Tamamori, Tomoki Toda
2016 Misc conf
An estimation method of voice timbre evaluation values using feature extraction with Gaussian mixture model based on reference singer.
ICASSP
Soichi Yamane, Kazuhiro Kobayashi, Tomoki Toda, Tomoyasu Nakano, Masataka Goto, Satoshi Nakamura
2016 — conf
F0 transformation techniques for statistical voice conversion with direct waveform modification with spectral differential.
SLT
Kazuhiro Kobayashi, Tomoki Toda, Satoshi Nakamura
2016 Misc conf
Implementation of F0 transformation for statistical singing voice conversion based on direct waveform modification.
ICASSP
Kazuhiro Kobayashi, Tomoki Toda, Satoshi Nakamura
2016 J jnl
Improvements of Voice Timbre Control Based on Perceived Age in Singing Voice Conversion.
IEICE Trans. Inf. Syst.
Kazuhiro Kobayashi, Tomoki Toda, Tomoyasu Nakano, Masataka Goto, Satoshi Nakamura
2016 A conf
The NU-NAIST Voice Conversion System for the Voice Conversion Challenge 2016.
INTERSPEECH
Kazuhiro Kobayashi, Shinnosuke Takamichi, Satoshi Nakamura, Tomoki Toda
2015 A conf
Articulatory controllable speech modification based on Gaussian mixture models with direct waveform modification using spectrum differential.
INTERSPEECH
Patrick Lumban Tobing, Kazuhiro Kobayashi, Tomoki Toda, Graham Neubig, Sakriani Sakti, Satoshi Nakamura
2015 J jnl
Development of Autonomous Mobile Robot Using Articulated Steering Vehicle and Lateral Guiding Method.
J. Robotics Mechatronics
Shinya Ohkawa, Yoshihiro Takita, Hisashi Date, Kazuhiro Kobayashi
2015 A conf
Statistical singing voice conversion based on direct waveform modification with global variance.
INTERSPEECH
Kazuhiro Kobayashi, Tomoki Toda, Graham Neubig, Sakriani Sakti, Satoshi Nakamura
2015 — conf
The NAIST Text-to-Speech System for the Blizzard Challenge 2015.
Blizzard Challenge
Shinnosuke Takamichi, Kazuhiro Kobayashi, Kou Tanaka, Tomoki Toda, Satoshi Nakamura
2014 — conf
Gender-dependent spectrum differential models for perceived age control based on direct waveform modification in singing voice conversion.
APSIPA
Kazuhiro Kobayashi, Tomoki Toda, Tomoyasu Nakano, Masataka Goto, Graham Neubig, Sakriani Sakti, Satoshi Nakamura
2014 Misc conf
Regression approaches to perceptual age control in singing voice conversion.
ICASSP
Kazuhiro Kobayashi, Tomoki Toda, Tomoyasu Nakano, Masataka Goto, Graham Neubig, Sakriani Sakti, Satoshi Nakamura
2014 A conf
Statistical singing voice conversion with direct waveform modification based on the spectrum differential.
INTERSPEECH
Kazuhiro Kobayashi, Tomoki Toda, Graham Neubig, Sakriani Sakti, Satoshi Nakamura
2014 J jnl
Voice Timbre Control Based on Perceived Age in Singing Voice Conversion.
IEICE Trans. Inf. Syst.
Kazuhiro Kobayashi, Tomoki Toda, Hironori Doi, Tomoyasu Nakano, Masataka Goto, Graham Neubig, Sakriani Sakti, Satoshi Nakamura
2013 A conf
An investigation of acoustic features for singing voice conversion based on perceptual age.
INTERSPEECH
Kazuhiro Kobayashi, Hironori Doi, Tomoki Toda, Tomoyasu Nakano, Masataka Goto, Graham Neubig, Sakriani Sakti, Satoshi Nakamura
2010 — conf
A Linear Approximation of the Value Function of an Approximate Dynamic Programming Approach for the Ship Scheduling Problem.
LION
Kazuhiro Kobayashi
2009 J jnl
Applying path-counting methods for measuring the robustness of the network-structured system.
Int. Trans. Oper. Res.
Kazuhiro Kobayashi, Hozumi Morohosi, Tatsuo Oyama
2007 J jnl
A conversion of an SDP having free variables into the standard form SDP.
Comput. Optim. Appl.
Kazuhiro Kobayashi, Kazuhide Nakata, Masakazu Kojima
2002 B conf
The Valence Patterns of Japanese Verbs Extracted From The EDR Corpus.
LREC
Takano Ogino, Hitoshi Isahara, Kazuhiro Kobayashi
1993 J jnl
Variable-structured robust controller by fuzzy logic for servomotors.
IEEE Trans. Ind. Electron.
Amin Suyitno, Jun Fujikawa, Kazuhiro Kobayashi, Yasuhiko Dote