Changed the FHT so it only looks at the first 44,100 samples. That
should give us the ability to handle sounds from 0.0 Hz to 22006.9 Hz
which covers all of the audible spectrum(at least for humans). I also
added a method that returns the results after processing the data. I'm
gonna need to add another that takes in a file name and performs the FHT
on that file.