# espos_audio The AudioDriver contract a board implements (header-only). ```sh idf.py add-dependency "signalk-espos/espos_audio^0.7" ``` Part of [espOS](https://github.com/signalk-espOS/espOS), an ESP-IDF runtime for Signal K devices. The components are released in lockstep, so one version of `espos_audio` works with the same version of every other. **Documentation:** [docs/voice.md](https://github.com/signalk-espOS/espOS/blob/main/docs/voice.md) Built on the espOS tree as a git submodule, or installed from the registry; either way `REQUIRES espos_audio` in a component's `CMakeLists.txt` resolves it. Apache-2.0. Issues and pull requests: [https://github.com/signalk-espOS/espOS/issues](https://github.com/signalk-espOS/espOS/issues).
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idf.py add-dependency "signalk-espos/espos_audio^0.9.1"