Google Reveals Expressive Audio Tags for Gemini 3.1 Text-to-Speech

Gemini's TTS model now supports inline tags like [screams], [whispers], and [pause] for granular vocal control — a small feature with big implications for podcast generation and interactive audio.

Google AI shared prompting tips for Gemini 3.1's TTS model, revealing that developers can embed tags like [screams], [whispers], [slow], and [pause] directly in prompts to control vocal delivery. This level of granular control over synthesized speech has previously required specialized audio engineering tools.

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