Google's new text-to-speech can switch languages on the fly

"Enhanced TTS features are makingGemini sound more natural and expressive. At Google I/O 2025, new models now voice over content in over 24 languages seamlessly using a unified voice, creating an illusion of continuity across multiple languages. The updated TTS can switch between English, Hindi, and back to English on the fly, with the ability to whisper softly for added intrigue. Available today via the Gemini API, these updates are part of Google's broader enhancements at I/O 2025, including real-time translation and other notable AI improvements."