See the Runtime MetaHuman Lip Sync demo project in action, showcasing realistic, real-time facial animation driven by streaming audio from multiple sources: live microphone, microphone playback, local and cloud-based text-to-speech (ElevenLabs, multiple languages), and audio file playback. Works with any streaming audio input, any language, MetaHuman and custom characters, fully cross-platform. Try it yourself or grab the source project (UE 5.6+).
https://dev.epicgames.com/community/learning/tutorials/W8eR/unreal-engine-fab-runtime-metahuman-lip-sync-demo-project-real-time-streaming-lip-sync-from-microphone-tts-and-audio-files