How to fade out all background sounds when a cutscene type video plays

This is I’m sure quite simple to do but not sure what to search for exactly. I’m using camera fades to fade out the level and ambient audio playing in it and then loading a cutscene video into a HUD widget (presumably the best way to play a cutscene although I’m not 100% sure, it seems a little convoluted)

I can’t figure out how to isolate only the sound from the video playing and leave the rest muted after the fade?

Here I used to go that tutorial;

Then I categorize all my sounds like music, sfx, etc. in this way you can turn them off or fade away specifically, I hope it’s helpful for you


Great - just what I was looking for, thanks!