Multicast Audio Packets

I am trying to troubleshoot a “choppy audio” issue with a wifi voice communication device. I have taken a packet capture using wireshark, however, I cannot seem to filter out any of the multicast audio packets. I see the device receive/join the multicast session, but then it’s almost as if there are no audio packets getting to the badge. I have also done a completely open capture with no filters, and see the same thing.

Anyone know how to capture and view this info in wireshark?