The plugin now reads OBS configuration to select the audio devices to use for the voice capture DMO. The microphone device is obviously used for voice capture, and the desktop audio device is used as the speaker feedback input for echo cancellation. In addition, the OBS microphone gain value will be applied to the audio data. Note: if your microphone gain setting is greater than 1, I strongly recommend setting it back to 1, seeing how it sounds, and going from there. Because the audio from the DMO is already auto-gained, applying a large fixed gain will easily cause it to clip.