Building Dynamic Audio with Emotion & Pace: Gemini 3.1 Flash TTS, Angular & Firebase Cloud Functions
SMRTR summary
Google's Gemini 3.1 Flash TTS Preview model brings expressive, emotion-driven audio generation to the Gemini API. This walkthrough shows how to integrate it into an Angular app using Firebase Cloud Functions, where users input a scene, emotion, and pace to generate unique voice output — with hard-won lessons about token boundaries, prompt sanitization, and why dynamic audio tags can silently fail.
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