I’ll use this opportunity to explain the sound card default assignments and explain why none of them belong with Digirig components.
The default audio devices are used anytime the sound plays/recorded on the computer and there is no explicit device assigned in the app to handle it. When new sound card is connected for the first time Windows assumes (correctly in most cases, but not with Digirig) that this is what you want to use as a default device. In case of Digirig that means that if you don’t reassign the defaults then you will not hear any of the system’s beeps and boops or sound from YouTube videos etc. and instead that audio may end up on the air. We don’t really want that.
The default communication audio is the same as regular default, but it is related to voice over IP applications. Things like Skype calls, video calls etc. The purpose of this separate default is to give you the option to have a headset for calls while the regular audio would use computer’s speaker. If this default is not reassigned then you’ll blast FT8 sounds at the unfortunate caller if you happen to have a VoIP call on the computer.
With above in mind I reiterate that all the defaults should be moved from all Digirig’s audio components. This also means that in the digital modes app you need to explicitly assign Digirig’s audio components as source and destination for audio. In WSJT-X it is done in audio tab of settings form.