This project is designed to establish a DAB+ broadcasting system utilizing Open Digital Radio tools. It focuses on setting up a DAB+ multiplex for West-Brabant in the Netherlands, which spans allotments 49 and 50.
The architecture is built around a dynamic system that auto-generates all required configurations from the editable stations.json.
- Internet streams of all included stations are transcoded using
ODR-AudioEnc, and metadata is incorporated viaODR-PadEnc. - A supervisory tool monitors these encoding operations.
- NodeJS scripts generate all necessary configuration files, such as
mux.jsonforODR-DabMux. - Any modifications trigger the deployment of updated configuration files to the server, followed by a restart of the affected processes.
- If changes necessitate a multiplex rebuild, a complete restart of the multiplex is scheduled for 3 AM, because
ODR-DabMuxdoes not support live reloading.
CI/CD pipelines are triggered by updates to stations.json. They oversee the setup, modification, or removal of ODR-AudioEnc encoders and the compilation of a new mux.json for ODR-DabMux. This process can also be initiated manually from the Actions tab on GitHub.
ZuidWest-DAB+/
│
├── .github/ # GitHub specific files like workflows and actions
│ └── workflows/ # CI/CD workflows
│
├── config/ # Configuration files
│ ├── dabmux.service # Service file for the DAB multiplexer
│ ├── websocket.service # Service file for the websocket that feeds the webinterface
│ └── mux.json # Auto-generated multiplexer configuration
│
├── scripts/ # Node helper scripts
│ ├── generator-dirs.js # Node.js script to generate directories
│ ├── generator-encoders.js # Node.js script for encoder configuration
│ └── generator-mux.js # Node.js script for multiplexer configuration
│
├── web/ # Highly insecure web interface (seriously, don't put this in production)
│ ├── index.html # Status page for ODR-DabMux
│ ├── websocket.py # Python script that converts the ZeroMQ output of ODR-DabMux to a websocket
│ └── setupweb.sh # Set-up script for web interface
│
├── test/ # Automated tests
│ └── validate-stations.js # Validates the configuration in stations.json
│
├── stations.json # User-edited station configuration (Edit this to get started)
├── setup.sh # Shell script for inital server setup
├── .gitignore # Specifies intentionally untracked files to ignore
└── README.md # Project overview and documentation