How can I world sound stop, when matinee sound play.

I can not speak English well. Sorry.

I want to main sound stop, when matinee sound play.
I want to only matinee sound play

There seems to be a way to the Unreal sound group.

I can not control from the outside.
There are too many parts to be called from outside. → blueprint, sound actor, c++ source…
The company projects.

you can can spawn your main sounds before matinee and destroy its actor when matinee is playing and then respawn it

and another way here link text

It has resolved itself. Thank you. I used the sound grouping and sound ducking. Calling the sound of the sound group to kill another sound.

Sound unreal ducking .