OmniVoice is an open-source, state-of-the-art zero-shot text-to-speech (TTS) model supporting over 600 languages, built on a diffusion language model-style architecture. It provides voice cloning from short reference audio, voice design via speaker attributes (gender, age, pitch, accent), fine-grained control with non-verbal symbols, and inference up to 40x faster than real-time.
It is most valuable when a project requires high-quality multilingual speech synthesis or personalized voice cloning, such as adding audio narration, accessibility text-to-speech, multilingual localization, IVR prompts, or custom brand voices to an application.