Today was...eh.
This morning was spent in more tweeking and adjusting of the various finders. I re-wrote NoteFinder with an extra class to find a single note, so that Axtell could include it in the GUI when a user highlights a peak and find the note, not just the hertz value. That also helped me find a few errors in the finder that had been present, but unseen, like it's propensity to have C's be an octave too low, or to needlessly return ? values.
In researching the MIR code and methods, I found that they use an FFT, but never split their minifiles smaller than 23 miliseconds. Testing ours, I found that, at larger sample sizes, the peaks were higher and more accurate, with less shifting to the sharper notes. So, we've now changed the default from 512 frames per sample (roughly 11 miliseconds) to 1025 frames (25 miliseconds). This lead to more tweaking of the Peak Finder, since the new default led to a lot more noise in the Hamming and Hanning windows. Ended up very similar, but enough to have needed the work I put in.
Unfortunately, I couldn't test the MIR program on the computers here, as they refuse to install Java 1.6. Instead, I tried running the program on my personal computer. I don't know what it was doing, but I don't think the program linked to was useful at all, as the files it wrote out were unreadable by any program I had. I'm going to investigate some of their other work, particularly the beat finder, tomorrow.
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