questions of interest
How would you solve the limits of the previous projects?
We referenced http://web.eecs.umich.edu/~girasole/teaching/451/2014fall/gradprojects/DSP_Project.pdf to better understand what limits we may face. In their project, they made a point of making a Butterworth low pass filter to minimize errors when detecting the frequencies of the notes of the recording. They also ran into problems with overlapping beats in the signal. They recommend using spectrogram analysis after dividing the song up by the tempo and filtering out each individual segment.
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What additional methods will you use for multiple notes?
In the event we find that multiple notes are being played simultaneously, we use the linearity property of the DFT like we did in Homework 3 to separate the different notes that are played and determine which they are exactly. We will try to use a Pitch Recognition file to help us determine which note we would like to pass through our final program.