Junichi Yamagishi, Takashi Masuko, Takao Kobayashi,
“MLLR adaptation for hidden semi-Markov model based speech synthesis”
Proc. ICSLP 2004, vo.II, pp.1213--1216, October 2004.

Junichi Yamagishi, Makoto Tachibana, Takashi Masuko, Takao Kobayashi,
“Speaking style adaptation using context clustering decision tree for HMM-based speech synthesis”
Proc. ICASSP 2004 , vol.I, pp.5-8, May 2004.

Makoto Tachibana, Junichi Yamagishi, Koji Onishi, Takashi Masuko, Takao Kobayashi,
“HMM-based speech synthesis with various speaking styles using model interpolation”
Proc. Speech Prosody 2004 , pp.413-416, March 2004.

Junichi Yamagishi, Takashi Masuko, Takao Kobayashi,
“HMM-based expressive speech synthesis -- Towards TTS with arbitrary speaking styles and emotions”
Special Workshop in Maui (SWIM) , January 2004.