Gemini TTS - Google's AI text-to-speech model

What is Gemini TTS?

Gemini TTS is Google's advanced AI text-to-speech technology, with the latest version being Gemini 2.5 Flash and Pro models. It supports multi-speaker, multi-language (over 24) synthesis, generating natural, fluent, and emotionally expressive speech. Users can precisely control the style, speed, tone, and emotional expression of the speech through natural language commands. Gemini TTS offers low-latency speech synthesis, suitable for everyday applications and professional scenarios such as podcasts, audiobooks, and voice assistants. The latest update enhances the expressiveness, speed control, and consistency of multi-speaker dialogues.

Main functions of Gemini TTS

• Multi-speaker speech generationIt can synthesize multiple different speaker voices in a single audio file, making dialogues and dramatic scenes more vivid.
• Emotion-aware speechIt can add emotional depth and nuances based on the text content, from excitement to sadness, making the voice more engaging.
• Multilingual supportIt supports more than 24 languages, including English, Spanish, Japanese, Hindi, and others, reaching a global audience.
• Developer-friendly APIDesigned for rapid integration, it provides RESTful API endpoints, client libraries, and SDKs for easy use by developers.
• Studio quality outputGenerates high-fidelity, human-like audio, suitable for professional use.
• Live PreviewThe script can be listened to before the final file is generated, allowing users to adjust the voice, emotion, and timing.
• High naturalness and smoothnessThe generated speech closely resembles human pronunciation, with natural intonation and rhythm, and no obvious mechanical feel, making it suitable for scenarios with high requirements for speech quality.
• Flexible customizationIt offers a variety of tone options (such as lively, calm, professional, etc.), and users can select or adjust tone parameters according to their needs.
• Wide range of applicationsIt is suitable for various fields such as audiobook production, podcast dubbing, game voice, educational courseware, and marketing videos, and can quickly generate high-quality audio content.

How to use Gemini TTS

• Access Platform:Open in browserThe official website of Google AI Studio uses speech to generate pages..
• Select mode
  • Single speaker modeSuitable for single-person reading scenarios. Click "Single-Speaker Audio" on the right side of the interface to switch.
  • Multi-speaker modeSupports two-person dialogue generation. The default is multi-speaker mode. To switch back to single-person mode, follow the same steps.
• Input text
  • Enter or paste the text you want to convert to speech in the “Raw Structure” text box.
  • If it is a multi-speaker mode, you need to enter the text in the format of "Speaker X: [Text Content]" on separate lines to clearly distinguish the lines of different speakers.
• Configure speaker settings
  • In the “Voice Settings” area, set a name for each speaker. The name must be exactly the same as the “Speaker X” identifier in the text.
  • Choose a voice tone for each speaker. You can preview the voice tone by clicking the play button next to it and select the appropriate voice style.
• Configure pronunciation style (optional)Enter a natural language description in the “Style Instructions” text box, such as “cheerful tone”, “serious tone”, “with Cantonese accent”, etc., to further control the emotion, tone and accent of the voice.
• Generate audioAfter completing the settings, click the "Run" button in the lower right corner of the interface, and Gemini TTS will begin processing the text and generating speech.Once generated, an audio player will appear at the bottom, allowing you to preview the audio online.
• Download audioIf you are satisfied with the generated audio, click the download button in the player to save the audio to your local device.

Application scenarios of Gemini TTS

• Podcast and Audiobook ProductionGemini TTS can generate natural and fluent speech, supports single-person or multi-person speech synthesis, and is suitable for podcast and audiobook production.
• Education industryIn language teaching, teachers can input course content into the system to generate standard pronunciation audio materials, helping students correct their intonation and pronunciation. Breakthroughs have also been achieved in educational support for the visually impaired; some institutions have digitized their teaching materials and converted them into audio content using TTS technology, enabling visually impaired students to complete their learning independently.
• auxiliary toolsText-to-Speech (TTS) is crucial for making digital content accessible to visually impaired or reading-difficult users. Screen readers rely on TTS to convert text in websites, apps, or documents into speech.
• Customer ServiceWidely used in automated customer service systems, such as interactive voice response (IVR) telephone systems and chatbots. Banks use TTS to dynamically retrieve account balances or transaction details during customer calls.
• Entertainment and GamesProvides realistic voices for game characters, virtual reality experiences, and interactive entertainment.
• Device voice generationIt allows devices to easily read text content, providing users with a better user experience and meeting accessibility requirements.