[scikit-learn] numpy integration with random forrest implementation

[Carlton Banks]

Hi guys.. 

I am currently working on a ASR project  in which the objective is to substitute part of the general ASR framework with some form of neural network, to see whether the tested part improves in any way. 

I started working with the feature extraction and tried, to make a neural network (NN) that could create MFCC features. I already know what the desired output is supposed to be, so the problem boils down to a simple 
input -  output mapping. Problem here is the my NN doesn’t seem to perform that well..  and i seem to get pretty large error for some reason. 

I therefore wanted to give random forrest a try, and see whether it could provide me a better result. 

I am currently storing my input and output in numpy.ndarrays, in which the input and output columns is consistent throughout all the examples, but the number of rows changes 
depending on length of the audio file.  

Is it possible with the random forrest implementation in scikit-learn to train a random forrest to map an input an output, given they are stored numpy.ndarrays?
Or do i have do it in a different way? and if so how?

kind regards

Carl truz