Mediatec professional here: hard/impossible to distinguish especially, because knowing precisely which signal processing your video-conferencing solution might

Mediatec professional here: hard/impossible to distinguish especially, because knowing precisely which signal processing your video-conferencing solution might be doing under which conditions and in which version is even hard to know for people who analyze one version of software in a lab environment. That is like a relative saying you are not an IT expert because you don't know immidiately what the distinct root cause of "the screen being black" is.