The Live Audio section is designed specifically to stream audio.
To create a Live section, activate the Live Audio add-on in the menu Add-ons > Catalogue > Live Services.
You will then be able to add a Live Audio section from the menu App > Sections > Add a section.
Name the section and add the URL of the stream encoded according to the iOS specifications, which is the stream that will be broadcasted by default.
You could use IceCast service to create your stream.
If you have a stream specifically for Android, you may also use that.
To schedule your streams, go to the Scheduling, activate the scheduling 'on air' button, and simply enter the time you want to go on air.
You can automatically re-schedule, depending how often you wish to go on air.