Respeecher

Respeecher is a professional AI voice platform known for high-quality voice cloning and speech-to-speech conversion in film, TV, games and advertising. Studios have used it to recreate voices, including younger versions of actors' voices, with the speaker's consent.

Its speech-to-speech technology lets a performer speak in another person's voice while keeping their own emotion, timing and delivery. Respeecher also offers a real-time text-to-speech API and Respeecher Space, a voice marketplace and studio, plus enterprise-grade voice cloning services for media teams. The company emphasises ethics and only clones voices with permission.

Good fit if you: are a studio, game developer or media team that needs production-grade synthetic or cloned voices.
Less ideal if you: just want quick narration for a YouTube video; simpler text-to-speech tools are cheaper.

Pricing: you can test it for free; production use and enterprise voice cloning are paid.