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Speech-To-Text plugins

The Speech-To-Text plugins allow you to connect Open Voice OS with different STT servers, it could be FasterWhisper, VOSK, Google Translate, Deepgram, etc... Each of these STT providers will have different languages support, precision and performances.


The Speech-To-Text plugins are handled by the ovos_listener container.

The ovos_listener container comes with few pre-installed STT plugins such as:

  • ovos-stt-plugin-chromium uses the Google Chrome browser API
  • ovos-stt-plugin-server allows you to reach an external STT service
  • ovos-stt-plugin-vosk is an offline STT service

If the existing STT plugins are not enough then you can install yours by following the same principle as for the microphone plugins by adding a listener.list file within the ~/ovos/config/ directory, this file acts as a Python requirements.txt file.

Plugins requirements

These plugins have to be compatible with the pip install method which requires a file.

When the ovos_listener container starts, it will look for this file and install the plugins defined in there.

ovos-stt-plugin-vosk==0.2.0a1 # Specific plugin version on PyPi
ovos-stt-plugin-server # Latest plugin version on PyPi
git+ # Specific branch of a plugin on GitHub

The ovos_listener container must be restarted if a change occurs in the listener.list file.

docker restart ovos_listener
podman restart ovos_listener