How to confirm Dolby Atmos playback on a wifi speaker via Airplay?

I have been listening to more of the Atmos music lately and when I'm playing on my phone it's obvious because the phone tells you whether the song is Atmos or not....I have a wifi speaker that supports atmos and when playing over airplay the display changes to where it doesnt say whether the song is playing in Atmos or not. Everything is setup for it but I like to see it with my own eyes. Am I missing something that tells me for sure?

[Re-Titled by Moderator]