I am part of a church and they want to live stream to facebook but we encounter a problem... There is an echo every time something is said, we have removed the desktop audio but it does nothing. We have an input from out soundboard into the computer but that is for all the microphones and stuff like that, I have been searching for ways to fix this issue but they all say mute desktop audio, are are also using an external camera that has a mic but that is muted. I will need an answer soon because we have a service tonight. (could not get the log file because I am not at the church right now) Thanks.