Stay on your ship. Put the game in a windowed state, not running in the background.
The queue ready sound will be high and normal.
I f the game is left in the background, the appropriate sound will not be heard when the queue is ready.
Known bug ^^.
Also stay on the ship and don't be hampered with the role changing by itself as it does on the fleet.
It does indeed play normally, but it's not loud enough to be noticeable.