[Solved]Decrease the sound

[stigma]

I try to gradually decrease the sound when I leave an area.
the decraese variable works fine in the Set Property action, only the music continues to play.
What is going on ?
THANKS

[djaydino]

set property is not set to 'every frame'

but you should also use a dedicated action instead of a 'Set Property' especially if you would target mobile platforms (you will need to use Linker Wizard to make sure your build works correctly).

There should be a 'Set Audio Volume' action.

[stigma]

It works well, thanks for the advice.