To play your audio at any desired time, make use of "Rules". Ensure that you apply the "should play" rule, when any event occurs.
You can add an Audio file by clicking on the '+' icon in the top bar and selecting ‘Audio’.
Adding Audio element
On the right panel, go to properties and select 'Click to Upload'.
You can choose the audio file from your computer or select from the available templates.
Read below to know how to select a file to upload an audio element.
Selecting an audio file
From the Properties Panel, you can preview the audio element, control the volume, silence it, or set it to loop.
Adjusting the audio element
Example Experience - Audio
The rules applied in the above experience are shown below
Rules applied in the example experience