I don't want audio to play when returning to a screen
I have a screen that features 4 layers, when the screen is first visited you will get the audio giving instructions on how to find out more (clicking 4 icons).
Once a user has clicked on one of the icon they are taken to a layer, when finished they click on the 'x' to retun to the main screen.
How do I stop the audio playing again when they return to the screen? They will potentially visit this screen 4 times before moving on to the next screen & I don't want to keep replaying the audio instructions.
Many thanks in advance.