Here’s a plugin that sounds like what you want:
https://forums.unrealengine.com/showthread.php?94974-eXi-s-Sound-Visualization-Plugin-(works-in-cooked-builds)-4-11-UPDATE-EXAMPLE-MAP-RELEASED
Here’s a plugin that sounds like what you want:
https://forums.unrealengine.com/showthread.php?94974-eXi-s-Sound-Visualization-Plugin-(works-in-cooked-builds)-4-11-UPDATE-EXAMPLE-MAP-RELEASED