Nonlinear signal processing for compensating nonlinear distortion of louspeakers. - Kenta Iwai; Yoshinobu Kajikawa (APSIPA, 2012)

Linearization of dynamic loudspeaker system using third-order nonlinear IIR filter. - Kenta Iwai; Yoshinobu Kajikawa (EUSIPCO, 2012)

Nonlinear distortion reduction for electrodynamic loudspeaker using nonlinear filtering. - Kenta Iwai; Yoshinobu Kajikawa (EUSIPCO, 2014)

Parameter Estimation Method Using Volterra Kernels for Nonlinear IIR Filters. - Kenta Iwai; Yoshinobu Kajikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014)

Third-Order Nonlinear IIR Filter for Compensating Nonlinear Distortions of Loudspeaker Systems. - Kenta Iwai; Yoshinobu Kajikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015)

Modification of second-order nonlinear IIR filter for compensating linear and nonlinear distortions of electrodynamic loudspeaker. - Kenta Iwai; Yoshinobu Kajikawa (EUSIPCO, 2017)

Active Speech Obscuration with Speaker-dependent Human Speech-like Noise for Speech Privacy. - Yoshitaka Ohshio; Haruka Adachi; Kenta Iwai; Takanobu Nishiura; Yoichi Yamashita (APSIPA, 2018)

Automatic Design Support System for Compact Acoustic Devices Using Deep Neural Network. - Kai Hirai; Kai Nakamura; Yoshinobu Kajikawa; Kenta Iwai (GCCE, 2018)

Improvement of Convergence Property on Adaptive Wiener Filter Using Stochastic Gradient Adaptive Algorithm. - Ryota Saika; Kenta Iwai; Yoshinobu Kajikawa (ISPACS, 2018)

Audio Integrated Active Noise Control System with Auto Gain Controller. - Kenta Iwai; Takanobu Nishiura (APSIPA, 2019)

Acoustic Design Support System of Compact Enclosure for Smartphone Using Deep Neural Network. - Kai Nakamura; Kenta Iwai; Yoshinobu Kajikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019)

Speech Enhancement for Optical Laser Microphone With Deep Neural Network. - Chengkai Cai; Kenta Iwai; Takanobu Nishiura; Yoichi Yamashita (APSIPA, 2020)

Study on Feedforward Active Noise Control System with Optical Laser Microphone to Detect Reference Signal with Short Delay. - Kenta Iwai; Takanobu Nishiura (APSIPA, 2020)

Feedforward Active Noise Control with Coherence-Adjusting Filter for Improving Noise Reduction Performance under Low-Coherence Condition. - Kenta Iwai; Takanobu Nishiura (APSIPA, 2020)

Harmonic Structure Mask for Speech Enhancement Using Sparsity Regularization. - Haonan Wang; Kenta Iwai; Takanobu Nishiura (APSIPA, 2020)

Sound Quality Improvement of Extracted Sound from Video with Rolling-shuttered Camera. - Atsushi Yoshida; Kenta Iwai; Takanobu Nishiura (GCCE, 2020)

Sharp-sound-image Construction Method Using Multichannel Sound System with Optimal Parametric Loudspeaker Arrangement. - Yuna Harada; Naoto Shimada; Haonan Wang; Kenta Iwai; Masato Nakayama; Takanobu Nishiura (APSIPA ASC, 2021)

Formulation of Multidimensional Frequency Characteristics of Second-Order Nonlinear IIR Filter. - Kenta Iwai; Yoshinobu Kajikawa; Takanobu Nishiura (APSIPA ASC, 2021)

A Study on Optimal Filter of Feedforward Active Noise Control System Based on Analysis of Frequency Response. - Kenta Iwai; Takanobu Nishiura (APSIPA ASC, 2021)

Two-stage phase reconstruction using DNN and von Mises distribution-based maximum likelihood. - Nguyen Binh Thien; Yukoh Wakabayashi; Kenta Iwai; Takanobu Nishiura (APSIPA ASC, 2021)

Step Size Control of Shared-error Normalized Least Mean Square Algorithm for Acoustic Echo and Noise Canceller. - Kenta Iwai; Takanobu Nishiura (APSIPA ASC, 2023)

Radiated Sound Field Reproduction for Surrounding Loudspeaker Array Based on Higher-order Ambisonics. - Shota Naiki; Shumpei Miura; Kenta Iwai; Takanobu Nishiura; Yoshiharu Soeta (APSIPA ASC, 2023)

Speech Quality Improvement Utilizing Out-of-Focus Areas in Rolling-Shutter Video on Speech Extraction. - Hayata Nakano; Tsubasa Yoshizawa; Yuting Geng; Kenta Iwai; Takanobu Nishiura (APSIPA ASC, 2023)

Weighted Von Mises Distribution-based Loss Function for Real-time STFT Phase Reconstruction Using DNN. - Nguyen Binh Thien; Yukoh Wakabayashi; Yuting Geng; Kenta Iwai; Takanobu Nishiura (INTERSPEECH, 2023)

Head-Mounted Multi-Channel Feedforward Active Noise Control System for Reducing Noise Arriving From Various Directions. - Takumi Miyake; Kenta Iwai; Yoshinobu Kajikawa (IEEE Access, 2023)

Inter-Frequency Phase Difference for Phase Reconstruction Using Deep Neural Networks and Maximum Likelihood. - Nguyen Binh Thien; Yukoh Wakabayashi; Kenta Iwai; Takanobu Nishiura (IEEE ACM Trans. Audio Speech Lang. Process., 2023)

Speech Enhancement for Laser Doppler Vibrometer Dealing with Unknown Irradiated Objects. - Chengkai Cai; Kenta Iwai; Takanobu Nishiura (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2023)

Performance Evaluation of Acoustic Echo and Noise Canceller with Variable-Step-Size Shared-Error NLMS Algorithm under Double-Talk Conditions. - Kenta Iwai; Takanobu Nishiura (APSIPA, 2024)

Sound Quality Improvement in Visual Microphone by Emphasizing Focused Area Based on Focal Rate. - Hayata Nakano; Yuting Geng; Kenta Iwai; Takanobu Nishiura (APSIPA, 2024)

Deep-Learning-Based Speech Enhancement with Rough-Focused Optical Laser Microphone by Reconstructing Complex Spectrum. - Yuki Nakano; Yuting Geng; Kenta Iwai; Takanobu Nishiura (APSIPA, 2024)

Construction Method of Acoustic Metadata on an Object-Based Audio Utilizing Coordinate Estimation of a Moving Sound Source. - Subaru Kato; Kenta Iwai; Takanobu Nishiura; Yoshiharu Soeta (GCCE, 2024)

Reduction of Noise in Reverberant Environments of Multichannel Feedforward Active Noise Control System with Optical Laser Microphone. - Maoto Mizutani; Kenta Iwai; Takanobu Nishiura; Yoshiharu Soeta (GCCE, 2024)

Joint Deep Neural Network for Single-Channel Speech Separation on Masking-Based Training Targets. - Peng Chen; Nguyen Binh Thien; Yuting Geng; Kenta Iwai; Takanobu Nishiura (IEEE Access, 2024)