F5R-TTS: Improving Flow-Matching based Text-to-Speech with Group Relative Policy Optimization

Xiaohui Sun, Ruitong Xiao, Jianye Mo +3

We present F5R-TTS, a novel text-to-speech (TTS) system that integrates Group Relative Policy Optimization (GRPO) into a flow-matching based architecture. By reformulating the dete…