FishSpeech

Fishspeech is an open-source text-to-speech (TTS) project developed by the FishAudio team. It combines large language model (LLM) techniques with speech synthesis to deliver high-quality, multilingual voice generation. Unlike many TTS systems, FishSpeech does not depend on phonemes, allowing it to handle text in any language script without additional language-specific processing. The project is avAIlable on GitHub and is designed for both researchers and developers seeking a flexible, end-to-end speech synthesis solution.

What it does

FishSpeech converts written text into natural-sounding speech in multiple languages, including English, Japanese, Korean, Chinese, French, German, Arabic, and Spanish. It supports zero-shot and few-shot TTS, meaning users can provIDE a short reference audio Sample (typically 10 to 30 SEConds) to clone a voice or control the tone and EMOtion of the generated speech. The system can also perform cross-lingual synthesis, generating speech in one language using a voice sample from another.

Key capabilities

• Zero-shot and few-shot TTS: Generate speech from text using only a brief voice sample, with no additional training required.
• multilingual and cross-lingual support: Works with eight major languages and can handle mixed-language input without phoneme dependencies.
• High accuracy and speed: Achieves low charACTer and word error rates (around 2% for English) and offers real-time factors of 1:5 on an RTX 4060 and 1:15 on an RTX 4090, making it suitable for real-time APPlications.
• Voice and emotion control: Users can fine-tune the timbre and emotional expression of the ouTPUt by adjusting the reference audio.
• Flexible interfaces: Includes a Gradio-based web UI that runs in Chrome, Firefox, and Edge, as well as a PyQt6 GUI for Linux, Windows, and macOS.
• End-to-end integration: Automatically integrates automatic speech recognition (ASR) and TTS for a seamless speech-to-speech pipeline without extra plugins.
• Open Source and extensible: The codebase is open for community contributions and customization, allowing developers to adapt the system for specific use cases.

Who it is for

FishSpeech is ideal for developers, researchers, and content creators who need a customizable, high-quality TTS engine. It suits applications such as voice assistants, language learning tools, audiobook production, and interactive media. Because it is open source, it also appeals to those who want to self-host or modify the system for specific requirements.

How to get started

To begin, visit the official GitHub repository to access the source code and documentation. installation instructions are provided for LinUX, Windows, and macOS. Users can run the Gradio web UI or the PyQt6 GUI for inference. For optimal performance, a dedicated GPU is recommended. The project includes pre-trained models and scripts to help you quickly test zero-shot TTS with your own audio samples.

Pricing and access caveat

FishSpeech is free to use under an open-source license. However, licensing terms and model availability may change over time, so check the repository for the latest Information. running the system locally requires appropriate hardware, and cloud-based alternatives may have different pricing. Always verify the current requirements and license before deployment.