Recording Bot Unable to capture audio stream from Teams Live Event

[pavankalyan066]

Issue
We have Teams recording bot with calling enabled built using dotnet, that joins a scheduled teams meeting and service principal have granted enough graph permissions to get the audio stream of the participants, works fine with scheduled meeting, but when adding the bot through sending explicit request using Postman, Bot joins the Teams Live Event and able to recognize the presenters but unable to transcribe the audio stream of Users/Participants of Event

Does it Require any additional Graph permissions to our Application?

Expected behavior
It should be able to process the audio stream of organizer, participants of Teams Live Event.

Graph SDK (please complete the following information):
Microsoft.Graph.Communications.Calls -1.2.0.850
Microsoft.Graph.Communications.Calls.Media - 1.2.0.850
Microsoft.Skype.Bots.Media - 1.19.0.25-alpha

Call ID (Teams Live Event)
46003580-8d42-4dc0-af4e-a893a7116b0f

Any useful information or idea to solve this issue would be helpful.

Thank you in Advance.

[InDieTasten]

As far as I understood Teams Live Events from back in the days I had to deal with them, they are a combination of a host meeting that works similar to any regular Teams meeting, but the media is also broadcast to a large amount of viewing participants, who are all receive only and are technically not connected to the actual host meeting.

I suspect that the SDK will be unable to receive media using this broadcast stream and the way your application connects to it, it might be a broadcast consumer, rather than an active presenter in the real time meeting.
Perhaps you can find a way to turn your application into a presenter while setting up the live event.

Though it's a lot of speculation on my part, as I haven't worked on Live Events for a long time.