Event/Sound routing at realtime, spectrum data

Hello,

We are making a splitscreen game where audio should be played on different devices. To send audio we need to get audio spectrum data. Is there any way to route events to only obtain their spectrum data and not get the entire master output?

We saw a post about having multiple FMOD.Studio.System systems, but trying to get system specific spectrum data we still get the entire master. Is such audio splitting at realtime even possible?