---
title: Gemini 2.5 audio features redefine real-time dialog and TTS
description: "Via Google DeepMind Blog: **Gemini 2.5** introduces native audio capabilities that transform how AI interacts with human speech. Google DeepMind's latest mod..."
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### Gemini 2.5 audio features redefine real-time dialog and TTS

Google DeepMind Blog • June 3, 2025 at 1:15 PM ET

[×](/sv/dev?tab=deepmind)

**Gemini 2.5** introduces native audio capabilities that transform how AI interacts with human speech. Google DeepMind's latest model enables real-time dialog with natural expressivity, low latency, and style control via natural language prompts. This isn't just about converting text to speech—it's about understanding tone, accent, and non-verbal cues like laughter. Developers can now build fluid conversations where AI adapts to context, ignores background noise, and even generates multilingual exchanges. For example, a user switching between English and Spanish mid-conversation gets seamless understanding. The tech also powers tools like NotebookLM’s Audio Overviews, making AI interactions feel human-like.

The **controllable text-to-speech (TTS)** system in Gemini 2.5 Pro and Flash previews takes audio generation further. Developers can dictate style, emotion, and pacing—ideal for podcasts, games, or announcements. Multilingual support covers 24+ languages, allowing content creation in Spanish, Mandarin, or hybrid phrases. This goes beyond basic translation; the model recognizes linguistic nuances within sentences. For instance, a storyteller could switch accents or adjust pacing dynamically. The Flash preview offers cost-efficient solutions for everyday apps, while Pro delivers high-quality outputs for complex scenarios. Applications range from interactive voice assistants to immersive audiobooks.

Safety remains a priority with **SynthID** watermarking, ensuring AI-generated audio is identifiable. Google DeepMind validated these features through rigorous testing, including red teaming. Developers access native audio via the Gemini API in Google AI Studio or Vertex AI. The Flash preview is already available for testing real-time dialog, while TTS remains in preview. This shift marks a practical leap: AI can now handle nuanced conversations, integrate tools like Google Search mid-discussion, and deliver context-aware responses. For industries relying on voice interfaces—healthcare, customer service, or education—this could redefine usability. The immediate impact lies in making AI interactions more intuitive and less robotic, with concrete tools available today.

[Read original article](https://deepmind.google/blog/advanced-audio-dialog-and-generation-with-gemini-25/)

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