Effects of speaker normalization based on vocal tract length ratios on word recognition using compound parameters. - Naomitsu Ikeda; Tadashi Sakata; Tomoaki Hirayama; Yuichi Ueda; Akira Watanabe (Syst. Comput. Jpn., 2005)

Vocal Tract Length Estimation Using Accumulated Means of Formants and Its Effects on Speaker-Normalization. - Tadashi Sakata; Naomitsu Ikeda; Yuichi Ueda; Akira Watanabe (IEEE ACM Trans. Audio Speech Lang. Process., 2021)