Journal Papers


  1. Keisuke Matsubara, Takuma Okamoto, Ryoichi Takashima, Tetsuya Takiguchi, Tomoki Toda, Hisashi Kawai,
    "Harmonic-Net: fundamental frequency and speech rate controllable fast neural vocoder,"
    IEEE/ACM Transactions on Audio Speech and Language Processing, vol. 31, pp. 1902-1915, 2023.

  2. Weihao Zhuang, Tristan Hascoet, Xunquan Chen, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
    "Convolutional neural networks inference memory optimization with receptive field-based input tiling,"
    APSIPA Transactions on Signal and Information Processing, vol. 12, no. 1, 2023.

  3. Xunquan Chen, Atsuki Oshiro, Jinhui Chen, Ryoichi Takashima, Tetsuya Takiguchi,
    "Phoneme-guided dysarthric speech conversion with non-parallel data by joint training,"
    Signal, Image and Video Processing, 2022.

  4. Keisuke Matsubara, Takuma Okamoto, Ryoichi Takashima, Tetsuya Takiguchi, Tomoki Toda, Hisashi Kawai,
    "Comparison of real-time multi-speaker neural vocoders on CPUs,"
    Acoustical Science and Technology (Letter), vol. 43, no. 2, pp. 121-124, 2022.

  5. Yuki Takashima, Ryoichi Takashima, Ryota Tsunoda, Ryo Aihara, Tetsuya Takiguchi, Yasuo Ariki, Nobuaki Motoyama,
    "Unsupervised domain adaptation for lip reading based on cross-modal knowledge distillation,"
    EURASIP Journal on Audio, Speech, and Music Processing, 2021.

  6. Keisuke Matsubara, Takuma Okamoto, Ryoichi Takashima, Tetsuya Takiguchi, Tomoki Toda, Yoshinori Shiga, Hisashi Kawai,
    "Full-band LPCNet: a real-time neural vocoder for 48 kHz audio with a CPU,"
    IEEE Access, vol. 9, pp. 94923-94933, 2021.

  7. Jinhui Chen, Ryoichi Takashima, Xingchen Guo, Zhihong Zhang, Xuexin Xud, Tetsuya Takiguchi, Edwin R. Hancock,
    "Multimodal fusion for indoor sound source localization,"
    Pattern Recognition, vol. 115, 2021.

  8. Keisuke Matsubara, Takuma Okamoto, Ryoichi Takashima, Tetsuya Takiguchi, Tomoki Toda, Yoshinori Shiga, Hisashi Kawai,
    "Investigation of training data size for real-time neural vocoders on CPUs,"
    Acoustical Science and Technology (Letter), vol. 42, no. 1, pp. 65-68, 2021.

  9. Yuki Takashima, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
    "Knowledge transferability between the speech data of persons with dysarthria speaking different languages for dysarthric speech recognition,"
    IEEE Access, vol. 7, pp. 164320-164326, 2019.

  10. Ryo Aihara, Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "Noise-robust voice conversion based on sparse spectral mapping using non-negative matrix factorization,"
    IEICE Transactions on Information and Systems, vol. E97-D, no. 6, pp. 1411-1418, 2014.

  11. Yasushi Nakai, Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "Speech intonation in children with autism spectrum disorder,"
    Brain and Development, vol. 36, no. 6, pp. 516-522, 2014.

  12. Ryo Aihara, Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "A preliminary demonstration of exemplar-based voice conversion for articulation disorders using an individuality-preserving dictionary,"
    EURASIP Journal on Audio, Speech, and Music Processing, vol. 2014, 2014.

  13. Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "Exemplar-based voice conversion using sparse representation in noisy environments,"
    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. 96-A, no. 10, pp. 1946-1953, 2013.

  14. Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "Single-channel talker localization based on separation of the acoustic transfer function using hidden Markov model and its classification,"
    Acoustical Science and Technology, vol. 34, no. 3, pp. 176-186, 2013.

  15. 高島遼一, 滝口哲也, 有木康雄,
    "音響モデル合成を用いた単一マイクによる2話者位置推定,"
    電子情報通信学会論文誌 D, vol. J96-D, no. 3, pp. 675-685, 2013.

  16. Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "Dimensional feature weighting utilizing multiple kernel learning for single-channel talker location discrimination using the acoustic transfer function,"
    Journal of the Acoustical Society of America, vol. 133, no. 2, pp. 891-901, 2013.

  17. Ryo Aihara, Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "GMM-based emotional voice conversion using spectrum and prosody features,"
    American Journal of Signal Processing, vol. 2, no. 5, pp. 134-138, 2012.

  18. Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "Monaural sound-source-direction estimation using the acoustic transfer function of a parabolic reflection board,"
    Journal of the Acoustical Society of America, vol. 127, no. 2, pp. 902-908, 2010.

  19. Ryoichi Takashima, Tetsuya Takiguch, Yasuo Ariki,
    "Evaluation of an active microphone with a parabolic reflection board for estimating sound source direction,"
    Far East Journal of Electronics and Communications, vol. 5, no. 2, pp. 91-104, 2010.

  20. Yasuo Ariki, Tetsuya Takiguchi, Takashi Muroi, Ryoichi Takashima,
    "Speech feature extraction using weighted higher-order local auto-correlation,"
    Far East Journal of Electronics and Communications, vol. 3, no. 2, pp. 125-140, 2009.

  21. Tetsuya Takiguchi, Yuji Sumida, Ryoichi Takashima, Yasuo Ariki,
    "Single-channel talker localization based on discrimination of acoustic transfer functions,"
    EURASIP Journal on Advances in Signal Processing, vol. 2009, 2009.