Open source. Open possibilities.

ESPnet is an end-to-end speech processing toolkit built on PyTorch, covering ASR, TTS, speech translation, enhancement, diarization, and more, with reproducible recipes and pretrained models.

FunTTS is a text-to-speech library with a unified interface that supports seamless switching between various open-source TTS engines, offering features like subtitle generation and multi-role dialogue.

A low-latency, modular voice-agent pipeline (VAD -> STT -> LLM -> TTS) that implements the OpenAI Realtime event set over WebSocket and WebRTC.