How to change Pawn audio (in and out)? (player start)

Hello,

I’m looking for the possibility to change the audio when the character start to play and, also, when he exits.
I mean, when I click the “PLAY” button, I heard a sound effect. I want to change with a new, soft, effect. Or, maybe, nothing.
Is it possible? =)

Thanks!

From what I understand, I think I have to change these sounds inside the “Project”. Is it correct?
PS: UE4 it’s very complex, with a few resources… =(

For example, if I open the default scenes (Advanced_Lighting, Minimal_Default and StarterMap), when I press “PLAY”, the sound is different!
But I’m not able to understand how to change it! No BP, no Cue, no sound… I don’t know what to do. I searched on forum and everywhere…

a new step: these audio files are located in

Engine Content -> EditorSounds->GamePreview.

Ok, I discovered now that, when you create the .exe file, there isn’t any sound. And I prefer this.
But, my question is still valid =)