Evaluation of the Lombard effect model on synthesizing Lombard speech in varying noise level environments with limited data. - Thuan Van Ngo; Rieko Kubo; Masato Akagi (APSIPA, 2019)

Enhancement of speech intelligibility under noisy reverberant conditions based on modulation spectrum concept. - Thuan Van Ngo; Tuan Vu Ho; Masashi Unoki; Rieko Kubo; Masato Akagi (APSIPA, 2020)

Mimicking Lombard Effect: An Analysis and Reconstruction. - Thuan Van Ngo; Rieko Kubo; Masato Akagi (IEICE Trans. Inf. Syst., 2020)

Effect of articulatory and acoustic features on the intelligibility of speech in noise: An articulatory synthesis study. - Thuan Van Ngo; Masato Akagi; Peter Birkholz (Speech Commun., 2020)

Increasing speech intelligibility and naturalness in noise based on concepts of modulation spectrum and modulation transfer function. - Thuan Van Ngo; Rieko Kubo; Masato Akagi (Speech Commun., 2021)