Include/exclude audio sources to your OBS streaming/recording(Ubuntu)

  1. Install PulseAudio Volume Control. You can find it in Ubuntu Software.
  2. Find the device number of your sound output device
pactl list short sinks
pactl load-module module-null-sink sink_name=SINKNAME \ sink_properties=device.description=NAME_OF_SINK
pactl load-module module-null-sink sink_name=streamAudio \ sink_properties=device.description="stream_audio"
pactl load-module module-combine-sink slaves=<number1>,<number2>

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