On windows platform, the ITVDesk capture audio from the audio input device (Use directsound technology), generally refers to the microphone. That allows to use any audio recording device as an input source for audio.
System sounds audio could also be used in ITVDesk after enabling "Stereo Mix" recording device
Windows control panel > Sound > Recording >> enable Stereo Mix
After Stereo Mix device was enabled, ITVDesk IPCamera should be Reopened.
After that the new Audio device will appear in ITVDesk audio sources list.
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