T. Nose, J. Yamagishi, T. Kobayashi,
A Style Control Technique for HMM-based Expressive Speech Synthesis,”
IEICE Trans. Information and Systems,
E90-D, no,9, pp.1406-1413, Sept. 2007
(See paper on IEICE web site)

J. Yamagishi and T. Kobayashi,
Average-Voice-based Speech Synthesis using HSMM-based Speaker Adaptation and Adaptive Training,”
IEICE Trans. Information and Systems,
E90-D, no.2, pp.533-543, Feb. 2007
(See paper on IEICE web site)