Tells the plugin to play a new audio file.
The action arguments are:
The channel name the new video is to be played on
The name of the media to play, full path to an audio file
The initial volume value to play the media at. The value should be between 0 and 100.
The number of milliseconds to wait in between update messages
A value that is set to 1 to emit time update events, 0 otherwise
Any extra data that should be passed to the backend, can be NULL