Tilt Brush - Multiple audio reactive sketches, each with its own audio source, in Unity?

The audio reactive export pipeline to Unity is fantastic but I would like each Tilt Brush object to have and react to its own audio source.

Digging in, I found VisualizerAudioInput.cs with this invitation in comments:
//Get audio data from Unity (Hint: replace this with your own!)

The line in question is:
AudioListener.GetOutputData(m_WaveformFloats, 0);

I know that I can get the current audio source (not Listener) data by using AudioSource.GetOutputData but here are my questions:

1) Will that refer to just the source on that GameObject or any playing source?
2) If we think it will work with some extra code, can someone give me the correct code? (not a c# coder myself)
3) Can I put this revised code on each gameobject/source or is the Tilt Brush audio reactive code designed to occur only once in a Unity scene?

I will try a hack myself and if it works, pass it along here.

Thanks!

 

Have you found the solution? I am interrested in the same question about separation of the audio sourses for each brush

 

Also looking for this solution.