Realtime Microphone Input Recognition And niagara

I know even title is really confusing, but that’s the problem I ran into.

How can i Recognize the words from microphone and use them to make niagara?

for example if i said hello, niagara shows small circle and if i said wow, niagara shows big circle
(sure i can make circle in niagara already)

and is it even possible in realtime?

Hey there @hjs71738! This depends if you wanted to handle the voice recognition yourself or would prefer an out of the box solution. If I were to implement it myself, I’d probably work on a source plugin and see if I can find an offline speech processor to use. Though some users had suggested this plugin as an out of the box solution, though I’ve heard some users have issues with setup:

https://www.unrealengine.com/marketplace/en-US/product/runtime-speech-recognizer