Development of Smartcall Vietnamese Text-to-Speech for VLSP 2020 Khuong Duy Trieu author Ba Quyen Dam author Quoc Bao Nguyen author 2020-12 text Proceedings of the 7th International Workshop on Vietnamese Language and Speech Processing Huyen T M Nguyen editor Xuan-Son Vu editor Chi Mai Luong editor Association for Computational Lingustics Hanoi, Vietnam conference publication trieu-etal-2020-development https://aclanthology.org/2020.vlsp-1.5/ 2020-12 24 29