This is a small project I did for myself to learn more about Niagara in UE4. I hooked up an audio input (.wav) to influence the niagara particles. Since I liked it so much fooling around with it, I tried multiple different inputs with different setups.
I hope people enjoy the results :-)
Niagara particles reacting on music - UE4 VFX
Niagara system realtime reacting on Ludovico Einaudi - Divenire - UE4
Niagara reacting on music - Editor view - UE4