Gregory's Server
Audon is a great real-time audio streaming service for the #fediverse! Think Spaces or Clubhouse, and you pretty much got it. You create a room for audio, where other people can listen to you, or just give them the role of speaker as well.
You can easily log in with your fediverse (Mastodon/Calckey/Pleroma) account, create a room, share the link, and you're ready to go!
Check it out at https://audon.space
Audon makes good use of the social graph of your fediverse account as well. You need to sign in to listen in on a room, and that means that there is a lot of different privacy settings available for the room. Like, you can have a room with only your followers, or only the people you follow. See the screenshot for all the available options.