Is it possible to set the same audio source for all layouts, so I dont have to test all the layouts?
When creating a layout in the Channel’s layout section, you would manually select which audio source you would like to use. It is the same principle as when adding and selecting video sources. You can learn more on the online user guide here
https://www.epiphan.com/userguides/pearl-2/Content/UserGuides/Streaming/capture/channelCustomAddAudioSource.htm