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Publications

Thesis

Doctral thesis

Master's thesis

Book Chapters

  1. Hiroshi Saruwatari, Yu Takahashi, “Blind source separation for speech application under real acoustic environment (in book chapter),” Inpendent Component Analysis for Audio and Biosignal Applications (G. Naik Ed.), pp.41-66, ISBN 978-953-51-0782-8, InTech Publishing, 2012.

Journal Papers

  1. Kentaro Tachibana, Yu Takahashi, Yoshimitsu Mori, Hiroshi Saruwatari,Kiyohiro Shikano and Akira Tanaka, “Fast Nonclosed-Form Higher-Order ICA with Frequency-Subband Selection Using Closed-Form Second-Order ICA,” Journal of Signal Processing, vol.12, no.4, pp.327–330, 2008.
  2. Keiichi Osako, Yoshimitsu Mori, Yu Takahashi, Hiroshi Saruwatari and Kiyohiro Shikano, “Fast Convergence Blind Source Separation Using Frequency Subband Interpolation by Null Beamforming,” IEICE Trans. Fundamentals, vol.E91-A, no.6, pp.1329–1336, 2008.
  3. Yu Takahashi, Tomoya Takatani, Keiichi Osako, Hiroshi Saruwatari and Kiyohiro Shikano, “Blind spatial subtraction array for speech enhancement in noisy environment,” IEEE Transactions on Audio, Speech and Language Processing, vol.17, no.4, pp.650–664, May. 2009.
  4. Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, and Kazunobu Kondo, “Musical-noise analysis in methods of integrating microphone array and spectral subtraction based on higher-order statistics,” EURASIP Journal on Advances in Signal Processing, vol. 2010, Article ID 431347, 25 pages, 2010, doi:10.1155/2010/431347.
  5. Kazunobu Kondo, Yu Takahashi, Seiichi Hashimoto, Hiroshi Saruwatari, Takanori Nishino and Kazuya Takeda, “Improved method of blind speech separation with low computational complexity,” Advances in Acoustics and Vibration, vol.2011, Article ID 765429, 10 pages, 2011. (doi: 10.1155/2011/765429).
  6. Takayuki Inoue, Hiroshi Saruwatari, Yu Takahashi, Kiyohiro Shikano, Kazunobu Kondo, “Theoretical analysis of musical noise in generalized spectral subtraction based on higher-order statistics,” IEEE Transactions on Audio, Speech and Language Processing, vol.19, no.6, pp.1770-1779, Aug. 2011.
  7. Hiroshi Saruwatari, Yohei Ishikawa, Yu Takahashi, Takayuki Inoue, Kiyohiro Shikano, Kazunobu Kondo, “Musical noise controllable algorithm of channelwise spectral subtraction and adaptive beamforming based on higher-order statistics,” IEEE Transactions on Audio, Speech and Language Processing, vol.19, no.6, pp.1457-1466, Aug. 2011.
  8. Ryoichi Miyazaki, Hiroshi Saruwatari, Takayuki Inoue, Yu Takahashi, Kiyohiro Shikano, Kazunobu Kondo, “Musical-noise-free speech enhancement based on optimized iterative spectral subtraction,” IEEE Transactions on Audio, Speech and Language Processing, vol.20, No.7, pp.2080-2094, September 2012.
  9. Daichi Kitamura, Hiroshi Saruwatari, Kosuke Yagi, Kiyohiro Shikano, Yu Takahashi, KazunobuKondo, “Music signal separation based on supervised nonnegative matrix factorization with orthogonality and maximum-divergence penalties,” IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E97-A, no. 5, pp. 1113-1118, May 2014.
  10. Daichi Kitamura, Hiroshi Saruwatari, Hirokazu Kameoka, Yu Takahashi, Kazunobu Kondo, and Satoshi Nakamura, “Multichannel signal separation combining directional clustering and nonnegative matrix factorization with spectrogram restoration,” IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 23, no. 4, pp. 654–669, April 2015.
  11. Daichi Kitamura, Shinichi Mogami, Yoshiki Mitsui, Norihiro Takamura, Hiroshi Saruwatari, Nobutaka Ono, and Yu Takahashi, “Generalized independent low-rank matrix analysis using heavy-tailed distributions for blind source separation,” EURASIP Journal on Advances in Signal Processing, 2018.
  12. Tomoyuki Kuroiwa, Akimoto Nimura, Yu Takahashi, Toru Sasaki, Takafumi Koyama, Atsushi Okawa and K. Fujita, ''Device Development for Detecting Thumb Opposition Impairment Using Carbon Nanotube-Based Strain Sensors, '' Sensors 20(14): 3998 (2020)
  13. Shinichi Mogami, Norihiro Takamura, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, Kazunobu Kondo, and Nobutaka Ono, “Independent low-rank matrix analysis based on time-variant sub-Gaussian source model for determined blind source separation,” IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. 28, pp. 503–518, 2019.
  14. Naoki Makishima, Yoshiki Mitsui, Norihiro Takamune, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Independent deeply learned matrix analysis with automatic selection of stable microphone-wise update and fast sourcewise update of demixing matrix,” Signal Processing (Elsevier), vol. 178, no. 107753, Sep. 2020.
  15. Keigo Kamo, Yoshiki Mitsui, Yuki Kubo, Norihiro Takamura, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Joint-diagonalizability-constrained multichannel nonnegative matrix factorization based on time-variant multivariate complex sub-Gaussian distribution,” Elsevier Signal Processing, vol. 188, p. 108183, Jun. 2021
  16. Tatsumi Hasumi, Tomohiko Nakamura, Norihiro Takamune, Hiroshi Saruwatari, Daichi Kitamura, Yu Takahashi, and Kazunobu Kondo, “PoP-IDLMA: Product-of-Prior Independent Deeply Learned Matrix Analysis for Multichannel Music Source Separation,” IEEE/ACM Transactions on Audio, Speech, and Language Processing, 2023.

Proceedings (peer reviewd)

  1. Yu Takahashi, Tomoya Takatani, Hiroshi Saruwatari and Kiyohiro Shikano, “Blind spatial subtraction array with independent component analysis for hands-free speech recognition,” ernational Work Shop on Acoustic Echo and Noise Control (IWAENC 2006), Sept. 2006.
  2. Yu Takahashi, Tomoya Takatani, Hiroshi Saruwatari and Kiyohiro Shikano, “Blind spatial subtraction array based on independent component analysis for speech enhancement and recognition,” The Journal of the Acoustical Society of America, Vol. 120, No. 5, Pt. 2 of 2 (4th Joint Meeting), pp.3047–3048, Nov. 2006
  3. Yu Takahashi, Tomoya Takatani, Hiroshi Saruwatari and Kiyohiro Shikano, “Robust Spatial Subtraction Array with Independent Component Analysis for Speech Enhancement,” ernational Symposium on Signal Processing and its Applications (ISSPA 2007), Feb. 2007.
  4. Ayase Takagi, Yoshimitsu Mori, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, “Improvement of Acoustic Model for Hands-Free Speech Recognition Using Spatial Subtraction Array,” RISP International Workshop on Nonlinear Circuits and Signal Processing, pp.473–476, March 2007.
  5. Naoya Tanaka, Yu Takahashi, Yoshimitsu Mori, Hiroshi Saruwatari, Kiyohiro Shikano, “Internal robot noise reduction by using NAM microphone for hands-free speech recognition,” RISP International Workshop on Nonlinear Circuits and Signal Processing, pp.579–582, March 2007.
  6. Yu Takahashi, Tomoya Takatani, Hiroshi Saruwatari and Kiyohiro Shikano, “Permutation-robust Structure for ICA-based Blind Source Extraction,” ernational Conference on Acoustics, Speech, and Signal Processing (ICASSP 2007), Vol. I, pp.149–152, Apr. 2007.
  7. Yoshimitsu Mori, Keiichi Osako, Shigeki Miyabe, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, “MLSP 2007 Data Analysis Competition: Two-Stage Blind Source Separation Combining SIMO-Model-Based ICA and Binary Masking,” 2007 IEEE International workshops on Machine Learning for Signal Processing (MLSP 2007), August 2007. (invited talk)
  8. Keiichi Osako, Yoshimitsu Mori, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, “Fast Convergence Blind Source Separation Based on Frequency Subband Interpolation by Null Beamforming,” IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2007), pp.42–45, Oct. 2007.
  9. Kentaro Tachibana, Yu Takahashi, Yoshimitsu Mori, Hiroshi Saruwatari, Kiyohiro Shikano, and Akira Tanaka, “Fast Nonclosed-Form Higher-Order ICA with Frequency-subband Selection Using Closed-Form Second-Order ICA, ” 2008 RISP International Workshop on Nonlinear Circuits and Signal Processing (NCSP 2008), pp.188–191, March 2008.
  10. Yu Takahashi, Keiichi Osako, Hiroshi Saruwatari and Kiyohiro Shikano, “Blind Source Extraction For Hands-Free Speech Recognition based on Wiener Filtering and ICA-based Noise Estimation,” Joint Workshop on Hands-free Speech Communication and Microphone Arrays (HSMCA2008), pp. 164–167, May 2008.
  11. Yoshihisa Uemura, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, and Kazunobu Kondo, “Automatic Optimization Scheme of Spectral Subtraction based on musical noise assessment via higher-order statistics,”International Workshop on Acoustic Echo and Noise Control (IWAENC), September 2008.
  12. Yuuki Fujihara, Yu Takahashi, Shigeki Miyabe, Hiroshi Saruwatari, Kiyohiro Shikanoy , Akira Tanaka “Performance improvement of higher-order ICA using learning period detection based on closed-form second-order ICA and kurtosis,” ernational Workshop on Acoustic Echo and Noise Control (IWAENC), September 2008.
  13. Hiroshi Saruwatari, Yu Takahashi, Hiroyuki Sakai, Shota Takeuchi, Tobias Cincarek, Hiromichi Kawanami, and Kiyohiro Shikano, “Development and Evaluation of Hands-Free Spoken Dialogue System for Railway Station Guidance,” ERSPEECH2008, pp.455–pp.458, September 2008.
  14. Yu Takahashi, Hiroshi Saruwatari and Kiyohiro Shikano, “Real-Time Implementation of Blind Spatial Subtraction Array For Hands-Free Robot Spoken Dialogue System,” IEEE/RSJ International Conference on Intelligent Robotics and Systems (IROS2008), pp.1687–pp.1692, 2008.
  15. Keisuke Masatoki, Shigeki Miyabe, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, Toshiyuki Nomura, “Timing Optimization of Filter Replacement in Compressive Coding for Stereo Audio Signals Using Independent Component Analysis,” ernational Conference on Signal Processing (ICSP’08), Beijing, China, pp. 510–513, October 2008.
  16. Yu Takahashi, Hiroshi Saruwatari, Yuki Fujihara, Kentaro Tachibana, Yoshimitsu Mori, Shigeki Miyabe, Kiyohiro Shikano, and Akira Tanaka, “Source adaptive blind signal extraction using closed-form ICA for hands-free robot spoken dialogue system,” ernational Conference on Acoustics, Speech, and Signal Processing (ICASSP2009), pp.3361–3364, 2009 (invited).
  17. Yu Takahashi, Yoshihisa Uemura, Hiroshi Saruwatari, Kiyohiro Shikano, and Kazunobu Kondo, “Musical noise analysis based on higher order statistics for microphone array and nonlinear signal processing,” ernational Conference on Acoustics, Speech, and Signal Processing (ICASSP2009), pp.229–232, 2009.
  18. Hiroshi Saruwatari, Hiromichi Kawanami, Shota Takeuchi, Yu Takahashi, Tobias Cincarek, and Kiyohiro Shikano “Hands-free speech recognition challenge for real-world speech dialogue systems,” ernational Conference on Acoustics, Speech, and Signal Processing (ICASSP2009), pp.3729–3782, 2009.
  19. Yoshihisa Uemura, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, and Kazunobu Kondo “Musical noise generation analysis for noise reduction methods based on spectral subtraction and MMSE STSA estimation,”International Conference on Acoustics, Speech, and Signal Processing (ICASSP2009), pp.4433–4436, 2009.
  20. Takashi Hiekata, Takashi Morita, Youhei Ikeda, Hiroshi Hashimoto, Ruoyu Zhan, Yu Takahashi, Hiroshi Saruwatari, and Kiyohiro Shikano, “Multiple ICA-based real-time blind source extraction applied to handy size microphone,”International Conference on Acoustics, Speech, and Signal Processing (ICASSP2009), pp.121–124, 2009.
  21. Hiroshi Saruwatari, Yu Takahashi, Kentaro Tachibana, Yoshimitsu Mori, Shigeki Miyabe, Kiyohiro Shikano, and Akira Tanaka “Fast and Versatile Blind Separation of Diverse Sounds Using Closed-Form Estimation of Probability Density Functions of Sources,” ernational Workshop on Computational Advances in Multi-Sensor Adaptive Processing(CAMSAP2009), pp.249–252, 2009.
  22. Yu Takahashi, Yoshihisa Uemura, Hiroshi Saruwatari, Kiyohiro Shikano, and Kazunobu Kondo, “Structure selection algorithm for less musical-noise generation in integration systems of beamforming and spectral subtraction,” 2009 International Workshop on Statistical Signal Processing (SSP2009), pp.701–704, 2009.
  23. Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, and Kazunobu Kondo, “Theoretical musical-noise analysis and its generalization for methods of integrating beamforming and spectral subtraction based on higher-order statistics.”International Conference on Acoustics, Speech, and Signal Processing (ICASSP2010), pp.93–96, 2010
  24. Ryoi Okamoto, Yu Takahashi, Hiroshi Saruwatari, and Kiyohiro Shikano “MMSE STSA estimator with nonstationary noise estimation based on ICA for high-quality speech enhancement,” ernational Conference on Acoustics, Speech, and Signal Processing (ICASSP2010), pp.4778–4781, 2010.
  25. Yohei Ishikawa, Hiroshi Saruwatari, Yu Takahashi, Kiyohiro Shikano, Kazunobu Kondo, “Musical noise controllable algorithm of channelwise spectral subtraction and beamforming based on higher-order statistics criterion,” The 2nd International Workshop on Cognitive Information Processing (CIP2010), pp.81–86, Elba, Italy, June 2010.
  26. Takayuki Inoue, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, “Theoretical analysis of musical noise in generalized spectral subtraction: why should not use power/amplitude subtraction?,” European Signal Processing Conference (EUSIPCO2010), Aalborg, Denmark, August 2010.
  27. Takayuki Inoue, Hiroshi Saruwatari, Yu Takahashi, Kiyohiro Shikano, Kazunobu Kondo, “Theoretical analysis of iterative weak spectral subtraction via higher-order statistics,” 2010 IEEE International Workshop on Machine Learning for Signal Processing (MLSP2010), Kittila, Finland, pp.220-225, September 2010.
  28. Hiroshi Saruwatari, Ryoi Okamoto, Yu Takahashi, Kiyohiro Shikano, “Blind speech extraction combining generalized MMSE STSA estimator and ICA-based noise and speech probability density function estimations,” 9th International Conference on Latent Variable Analysis and Signal Separation (LVA2010), St. Malo, France, pp.49-56, Sept. 2010.
  29. Hiroshi Saruwatari, Yu Takahashi, Kiyohiro Shikano, Kazunobu Kondo, “Blind speech extraction combining ICA-based noise estimation and less-musical-noise nonlinear post processing,” Asilomar Conference on Signals, Systems, and Computers, pp.1415-1419, California, USA, Nov. 2010 (Invited Talk).
  30. Kazunobu Kondo, Yu Takahashi, Seiichi Hashimoto, Hiroshi Saruwatari, Takanori Nishino, Kazuya Takeda, “Efficient blind speech separation suitable for embedded devices,” Proc. 19th European Signal Processing Conference (EUSIPCO2011), pp.2319-2323, September 2011.
  31. Kosuke Yagi, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, “Music signal separation by orthogonality and maximum-distance constrained nonnegative matrix factorization with target signal information,” Proc. Audio Engineering Society 45th International Conference (AES45th), March 2012.
  32. Yu Takahashi, Ryoichi Miyazaki, Hiroshi Saruwatari, Kazunobu Kondo, “Theoretical analysis of musical noise in nonlinear noise reduction based on higher-order statistics,” Proc. 2012 APSIPA Annual Summit and Conference (APSIPA2012), December 2012 (Invited Talk)
  33. Yusuke Iwao, Hiroshi Saruwatari, Noriyoshi Kamado, Kiyohiro Shikano, Kazunobu Kondo, Yu Takahashi, “Stereo music signal separation combining directional clustering and nonnegative matrix factorization,” Proc. 12th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT2012), December 2012.
  34. Daichi Kitamura, Hiroshi Saruwatari, Yusuke Iwao, Kiyohiro Shikano, Kazunobu Kondo, Yu Takahashi, “Regularized superresolution-based binaural signal separation with nonnegative matrix factorization,” Proc. 2013 International Conference on 3D Systems and Applications (3DSA2013), no.S10-4, June 2013.
  35. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, Yu Takahashi, “Music signal separation by supervised nonnegative matrix factorization with basis deformation,” Proc. 18th International Conference on Digital Signal Processing (DSP2013), no.T3P(C)-1, July 2013.
  36. Daichi Kitamura, Hiroshi Saruwatari, Yusuke Iwao, Kiyohiro Shikano, Kazunobu Kondo, Yu Takahashi, “Superresolution-based stereo signal separation via supervised nonnegative matrix factorization,” Proc. 18th International Conference on Digital Signal Processing (DSP2013), no.T3C-2, July 2013.
  37. Daichi Kitamura, Hiroshi Saruwatari, Kosuke Yagi, Kiyohiro Shikano, Yu Takahashi, Kazunobu Kondo, “Robust music signal separation based on supervised nonnegative matrix factorization with prevention of basis sharing,” Proc. IEEE International Symposium on Signal Processing and Information Technology (ISSPIT2013), December 2013.
  38. Yuki Murota, Daichi Kitamura, Shunsuke Nakai, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, Kazunobu Kondo, “Music signal separation based on Bayesian spectral amplitude estimator with automatic target prior adaptation,” Proc. International Conference on Acoustics, Speech and Signal Processing (ICASSP2014), Frolence, Italy, pp. 7540-7544, May 2014.
  39. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, Kazunobu Kondo, Hirokazu Kameoka, “Divergence optimization in nonnegative matrix factorization with spectrogram restoration for multichannel signal separation,” Proc. 4th Joint Workshop on Hands-free Speech Communication and Microphone Arrays (HSCMA2014), Nancy, France, May 2014.
  40. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, Kazunobu Kondo, and Hirokazu Kameoka, “Hybrid multichannel signal separation using supervised nonnegative matrix factorization with spectrogram restoration,” APSIPA ASC, Siem Reap, 2014. (Invited talk)
  41. Daichi Kitamura, Nobutaka Ono, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Discriminative and reconstructive basis training for audio source separation with semi-supervised nonnegative matrix factorization,” Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), Xian, 2016.
  42. Hiroaki Nakajima, Daichi Kitamura, Norihiro Takamune, Shoichi Koyama, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Audio signal separation using supervised NMF with time-variant all-pole-model-based basis deformation,” Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Jeju, 2016.
  43. Hiroaki Nakajima, Daichi Kitamura, Norihiro Takamune, Shoichi Koyama, Hiroshi Saruwatari, Nobutaka Ono, Yu Takahashi, and Kazunobu Kondo, “Music signal separation using supervised nmf with all-pole-model-based discriminative basis deformation,” Proceedings of The 2016 European Signal Processing Conference (EUSIPCO), Budapest, 2016, pp. 1143-1147.
  44. Yoshiki Mitsui, Daichi Kitamura, Norihiro Takamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Independent low-rank matrix analysis based on parametric majorization-equalization algorithm,” Proceedings of IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), Curaçao, 2017.
  45. Shinichi Mogami, Norihiro Takamura, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, Kazunobu Kondo, H. Nakajima, and Nobutaka Ono, “Independent low-rank matrix analysis based on time-variant sub-gaussian source model,” Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Hawaii, 2018. [APSIPA ASC 2018 Best Paper Award]
  46. N. Makishima, Norihiro Takamura, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, Kazunobu Kondo, and H. Nakajima, “Generalized-Gaussian-distribution-based independent deeply learned matrix analysis for multichannel audio source separation,” Proceedings of International Congress and Exhibition on Noise Control Engineering (INTERNOISE), Madrid, 2019.
  47. N. Makishima, Norihiro Takamura, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Column-wise update algorithm for independent deeply learned matrix analysis,” Proceedings of international congress on acoustics (ICA), Aachen, 2019, pp. 2805–2812. [Young Scientist Conference Attendance Grant]
  48. N. Makishima, Norihiro Takamura, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Robust demixing filter update algorithm based on microphone-wise coordinate descent for independent deeply learned matrix analysis,” Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Lanzhou, 2019, pp. 1868–1873.
  49. Keigo Kamo, Yuki Kubo, Norihiro Takamura, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Regularized Fast Multichannel Nonnegative Matrix Factorization with ILRMA-based Prior Distribution of Joint-Diagonalization Process,” Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2020, pp. 606–610.
  50. Keigo Kamo, Yuki Kubo, Norihiro Takamura, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, “Joint-Diagonalizability-Constrained Multichannel Nonnegative Matrix Factorization Based on Multivariate Complex Student’s t-distribution,” Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), 2020, pp. 869–874.
  51. Takuya Hasumi, Tomohiko Nakamura, Norihiro Takamune, Hiroshi Saruwatari, Daichi Kitamura, Yu Takahashi, and Kazunobu Kondo, “Empirical Bayesian Independent Deeply Learned Matrix Analysis For Multichannel Audio Source Separation,” Proceedings of European Signal Processing Conference (EUSIPCO), Aug. 2021.
  52. Takuya Hasumi, Tomohiko Nakamura, Norihiro Takamune, Hiroshi Saruwatari, Daichi Kitamura, Yu Takahashi, and Kazunobu Kondo, “Multichannel Audio Source Separation with Independent Deeply Learned Matrix Analysis Using Product of Source Models,” Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Dec. 2021, pp. 1226–1233.
  53. M. Kawamura, T. Nakamura, D. Kitamura, H. Saruwatari, Y. Takahashi, and K. Kondo, “Differentiable digital signal processing mixture model for synthesis parameter extraction from mixture of harmonic sounds,” in Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2022, pp. 941–945.

Technical reports

  1. Yu Takahashi, Tomoya Takatani, Hiroshi Saruwatari and Kiyohiro Shikano, “Noise reduction using spatial subtraction array based on independent component analysis”, IEICE Technical Report EA2006-22, vol.106, no.125, pp.13–18, June 2006.
  2. Yu Takahashi, Tomoya Takatani, Hiroshi Saruwatari, Kiyohiro Shikano, “Blind source extraction method with permutation-robust structure,” IEICE Technical Report EA2006-94, vol.106, no.432, pp.31–46, December 2006.
  3. Yu Takahashi, Keiichi Osako, Hiroshi Saruwatari and Kiyohiro Shikano, “Development of Hands-Free Spoken Dialogue System with Real-Time Blind Spatial Subtraction Array,” IEICE Technical Report EA2008-16, vol. 108, no.68 , pp.59–64, May 2008.
  4. Yu Takahashi, Yoshihisa Uemura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, “Objective sound quality evaluation for combination method of beamforming and spectral subtraction,” IEICE Technical Report EA2008-128, vol. 108, no. 411, pp. 73–78, 2009.
  5. Yoshihisa Uemura, Yu Takahashi, Hiroshi Saruwatari and Kiyohiro Shikano, Kazunobu Kondo, “Objective sound quality comparison based on higher-order statistics for nonlinear noise reduction methods,” IEICE Technical Report EA2008-127, vol. 108, no. 411, pp. 67–72, 2009.
  6. Takashi Hiekata, Youhei Ikeda, Hiroshi Hashimoto, Takashi Morita, Ruoyu Zhang, Yu Takahashi, Hiroshi Saruwatari and Kiyohiro Shikano, “Development of blind signal extraction device based on noise estimation by parallel ICAs,” IEICE Technical Report EA2008-135, vol. 108, no. 411, pp. 115–120, 2009.
  7. Takayuki Inoue, Yu Takahashi, Hiroshi Saruwatari, Kiyohiro Shikano and Kazunobu Kondo, “Mathematical metric of musical noise in arbitrary exponent domain SS,” IEICE Technical Report EA2010-7, vol.110, No.54, pp.37-42, May 2010.
  8. Takayuki Inoue, Hiroshi Saruwatari, Yu Takahashi, Kiyohiro Shikano and Kazunobu Kondo, “Mathematical metric of amount of musical noise in recursive spectral subtraction ” IEICE Technical Report EA2010-30, vol.110, No.71, pp.47–52, June 2010.
  9. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo and Yu Takahashi, “Study on optimal divergence for superresolution-based supervised nonnegative matrix factorization,” IEICE technical Report, EA2013-14, vol.113, no.27, pp.79-84, Okayama, May 2013.
  10. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo and Yu Takahashi, “Importance of regularization in superresolution-based multichannel signal separation with nonnegative matrix factorization,” Proceedings of 99th IPSJ Special Interest Group on Music and Computer (IPSJ-SIGMUS), vol.2013-MUS-99, no.14, pp.1-6, Tokyo, May 2013.
  11. Daichi Kitamura, Hiroshi Saruwatari, Kosuke Yagi, Kiyohiro Shikano, Yu Takahashi and Kazunobu Kondo, “Music signal separation using supervised nonnegative matrix factorization with orthogonality and maximum-divergence penalties,” Proceedings of 28th Signal Processing Symposium (SIP Symposium), C1-4, pp.539-544, Yamaguchi, November 2013.
  12. Yuki Murota, Daichi Kitamura, Shunsuke Nakai, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi and Kazunobu Kondo, “Postfilter-based nonnegative matrix factorization with statistical model parameter estimation,” IEICE Technical Report, EA2013-116, vol.113, no.413, pp.75-80, Osaka, January 2014.
  13. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, Kazunobu Kondo and Hirokazu Kameoka, “Experimental evaluation of superresolution-based nonnegative matrix factorization for binaural recording,” Proceedings of 103th IPSJ Special Interest Group on Music and Computer (IPSJ-SIGMUS), vol.2014-MUS-103, no.38, Tokyo, May 2014.