ChatTTS

ChatTTS is an open-source text-to-speech model optimized for conversational scenarios, primarily supporting Chinese and English. It generates natural, rhythmic speech, suitable for intelligent assistant dialogues, voice content creation, and video voiceovers across a variety of interaction contexts, helping users improve production efficiency and realism of audio content.

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ChatTTStext-to-speech modelconversational TTSopen-source speech synthesisChinese-English voice generationsmart voiceover toolopen-source speech synthesis project

Features of ChatTTS

Voice generation tailored for dialogue scenes with improved naturalness and fluency

Supports Chinese and English TTS and can handle mixed Chinese-English text

Rhythm control features to adjust pauses, emphasis, and intonation

Incorporates paralinguistic cues such as laughter and interjections via special markers to boost realism

Supports multiple voices and timbres for multi-character voiceovers

Available via Python API, CLI, and Web UI

Fully open-source project, enabling academic research, customization, and community collaboration

User-friendly: input text to generate corresponding speech

Use Cases of ChatTTS

Generate natural, human-like conversational voice for large language model assistants or smart customer support

Quickly generate narration for audiobooks, online courses, and other educational content

Post-production dubbing or character voice synthesis for video production and game development

Used by developers and researchers for testing, research, and building upon speech synthesis tech

Content creators can rapidly generate voiceover narration for social media or marketing materials

FAQ about ChatTTS

QWhat is ChatTTS?

ChatTTS is an open-source text-to-speech model designed for conversational scenarios, focused on producing natural, fluent speech, particularly suitable for intelligent assistant dialogues and audio content creation.

QWhat languages does ChatTTS support?

It primarily supports Chinese and English speech synthesis and can handle mixed Chinese-English text input.

QIs ChatTTS free?

ChatTTS is an open-source project; its code and base models are freely available for use. The official site also offers free online demos.

QHow to use ChatTTS?

You can use it by installing the Python package, cloning the GitHub project, or using online demonstrations. It supports API access, a command-line interface, and a web UI.

QCan ChatTTS control tone or emotion?

Yes. You can control speed, pitch, pauses, and certain paralinguistic cues (like laughter) via parameters and special markers.

QWhat is ChatTTS good for?

Ideal for smart customer support voiceovers, audiobook narration, video game voice acting, and other interactive scenarios that require natural conversational speech.

QHow fast is ChatTTS synthesis?

According to official information, synthesis is efficient with low end-to-end latency, suitable for most real-time or near-real-time applications.

QHow does ChatTTS handle privacy and data security?

As a locally deployable open-source model, user data can be processed in your own environment. The project also notes improving controllability and adding watermarking to enhance security.

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