Z-H. Ling, K. Richmond, J. Yamagishi, R.-H. Wang
Integrating Articulatory Features into HMM-based Parametric Speech Synthesis,”
IEEE Audio, Speech, & Language Processing.
vol.17 No.6 pp.1171-1185 August 2009
(See paper online using IEEE explore)

J. Yamagishi, T. Nose, H. Zen, Z. Ling, T. Toda, K. Tokuda, S. King, S. Renals
A Robust Speaker-Adaptive HMM-based Text-to-Speech Synthesis,”
IEEE Audio, Speech, & Language Processing,
vol.17, no.6, pp.1208-1230, August 2009
(See paper online using IEEE explore)

J. Yamagishi, T. Kobayashi, Y. Nakano, K. Ogata, J. Isogai
Analysis of Speaker Adaptation Algorithms for HMM-based Speech Synthesis and a Constrained SMAPLR Adaptation Algorithm,”
IEEE Audio, Speech, & Language Processing,
vol.17, issue 1, pp.66-83, January 2009
(See paper online using IEEE explore)