Particle engine (CPU/GPU) to trigger Audio blueprint/AK WWise event on VR hands?

Hello,

I am quite new to Unreal, however, have used WWise for years. I am trying to tie together a particle emitter to trigger audio on VR hands?

Any advice on the approach of this greatly appreciated?

It is evident that there are 2 different particle emitters CPU/GPU, from my limited understanding it would seem I can post events from the CPU? but, not GPU??

Do I define trigger areas on the hands themselves through blueprint or is there a better method, I’m looking for the palms only to be active at runtime.

Essentially want to trigger random container from this,

Your time is appreciated.

Thanks