SWT (声文通) Local Offline Speech-to-Text Desktop Tool — Secure, Fast, No Data Upload

SWT (声文通)

SWT is a fully offline speech-to-text desktop application built on the FunASR speech recognition framework. All audio data is processed locally — no internet connection required, and nothing is uploaded to any server.

Download

Preview

Features

Built-in Models

System Requirements

Quick Start

1. Clone and Enter Project

git clone https://gitee.com/ydtg1993/swt.git
cd swt

2. Create Virtual Environment and Install Dependencies

python -m venv .venv
.venv\Scripts\activate
pip install -r requirements.txt

3. Download Models

At least one ASR model must be downloaded on first run. After launching the application, go to Settings → Model Download Manager and select the desired models to download.

Models will be saved in the llm/ directory.

4. Launch Application

python main.py

Note: Transcribing video files requires installing ffmpeg and adding it to your system PATH.

Project Structure

swt/
├── main.py                  # Application entry point
├── requirements.txt         # Python dependencies
├── LICENSE                  # MIT License
├── config/                  # Configuration (YAML + Pydantic Settings)
├── core/                    # Core engine (ASR, VAD, subtitle generation)
├── models/                  # Data models (SQLAlchemy)
├── ui/                      # GUI layer (PySide6 + QFluentWidgets)
│   ├── pages/               # Page components
│   └── widgets/             # Reusable components
├── workers/                 # Background worker threads (QRunnable)
├── utils/                   # Utility functions
├── llm/                     # Model storage directory
├── resources/               # Icons, images
├── scripts/                 # Model download helper scripts
├── tests/                   # Tests
└── logs/                    # Logs

Tech Stack

Development

# Install dependencies
pip install -r requirements.txt

# Run application
python main.py

# Run tests
pytest tests/ -v

# Package as executable
pyinstaller main.spec

Third-Party Licenses

License

SWT (声文通) is open-sourced under the MIT License.

Copyright © 2026 SWT (声文通)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files, to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software.

Project Links

• Gitee: https://gitee.com/ydtg1993/swt

Made with ❤️ by ydtg1993