Speech Production by a Mechanical Model: Construction of a Vocal Tract and Its Control by Neural Network. - Toshio Higashimoto; Hideyuki Sawada (ICRA, 2002)

Vocalization Control of a Mechanical Vocal System under Auditory Feedback. - Toshio Higashimoto; Hideyuki Sawada (J. Robotics Mechatronics, 2002)

A mechanical voice system and its adaptive learning for the mimicry of human vocalization. - Toshio Higashimoto; Hideyuki Sawada (CIRA, 2003)

Mechanical voice system and its singing performance. - Hideyuki Sawada; Mitsuhiro Nakamura; Toshio Higashimoto (IROS, 2004)