FAudioGMS/gamemaker/objects/AUDIO/CleanUp_0.gml

/// @description Clean up all resources when the game is about to end.

/* Destroy sound instances first: */
// sndInst.Stop();
// sndInst.Destroy();
// sndInst = undefined;

/* Only then destroy static sounds: */
// snd.Destroy();
// snd = undefined;

/* And only then, destroy effect chains */
effChain.Destroy();
effChain = undefined;

/* Finish up the system */
FAudioGMS_Destroy();