As you already know, SpatialChat rooms have dynamic volume level. This means that the volume of the conversation adjusts based on the distance between you and the other participants, similar to how it would in a real room.
However, there may be times when you need everyone in the room to hear you equally well. In these situations, you can use the Megaphone feature to amplify your voice for all to hear.
When the Megaphone is in use, the avatar of the person speaking will become larger, allowing everyone in the room to easily identify who is speaking.