To enable the option of using a microphone alone, or in conjunction with an audio source at the same time:
Please note: Using audio commentary only works via accessing the cam via https, not http
1-Select the mic icon to enable audio commentary.
2- Select the Master Audio icon to enable/select the appropriate audio source in conjunction with
the appropriate mic source.
3- Use the sliders to adjust the required audio levels per the requirement.
If the audio source is changed in the Master audio it will be automatically reflected in the Video and Audio settings