Spatializing Monophonic Signals with ofxHOA

One last thing I've just been told: you can use the setCropSize(int i ) function to change the resolution of the binaural convolution. The maximum size is 512, and by setting it to 256 I have a much lighter process without a loss in quality that I can perceive (my cpu usage dropped to 26%)
I've pushed this changes to the repo.