SyncTalk++: High-Fidelity and Efficient Synchronized Talking Heads Synthesis Using Gaussian Splatting. - Ziqiao Peng; Wentao Hu; Junyuan Ma; Xiangyu Zhu 001; Xiaomei Zhang; Hao Zhao; Hui Tian; Jun He 008; Hongyan Liu 002; Zhaoxin Fan (CoRR, 2025)