Guest Editorial; Jhing-Fa Wang, Sadaoki Furui, Biing-Hwang Juang. A Robust Bimodal Speech Section Detection; K. Murai, S. Nakamura. Acoustic Feature Analysis and Discriminative Modeling of Filled Pauses for Spontaneous Speech Recognition; Chung-Hsien Wu, Gwo-Lang Yan. Simultaneous Recognition of Distant-Talking Speech of Multiple Talkers Based on the 3-D N-Best Search Method; P. Heracleous, S. Nakamura, K. Shikano. Multi-Modal Speech Recognition Using Optical-Flow Analysis for Lip Images; S. Tamura, K. Iwano, S. Furui. Speech Enhancement Using Perceptual Wavelet Packet Decomposition and Teager Energy Operator; Shi-Huang Chen, Jhing-Fa Wang. Use of Microphone Array and Model Adaptation for Hands-Free Speech Acquisition and Recognition; Jen-Tzung Chien, Jain-Ray Lai. Multimedia Corpus of In-Car Speech Communication; N. Kawaguchi, K. Takeda, F. Itakura. Speech and Language Processing for Multimodal Human-Computer Interaction; L. Deng, Y. Wang, K. Wang, A. Acero, H. Hon, J. Droppo, C. Boulis, M. Mahajan, X.D. Huang. Blind Model Selection for Automatic Speech Recognition in Reverberant Environments; L. Couvreur, C. Couvreur.