Why Is Pitch Tracking So Hard?
For this week's DSP Seminar, visiting researcher Chuck Cooper will present a seminar on pitch tracking (abstract follows). We will meet in the classroom at 2:15 PM.
Why Is Pitch Tracking So Hard?
Chuck Cooper
This DSP seminar will examine a variety of algorithms for "pitch-detection" (fundamental frequency estimation and tracking), including time-domain methods such as autocorrelation and AMDF, as well as frequency-domain techniques. We’ll discuss why some algorithms work well on particular kinds of signals---speech, singing voice, or monophonic instruments---but fail miserably with other inputs. We’ll consider issues of latency and computational complexity for real-time applications, and, for off-line analysis, explore high-accuracy techniques. Some of the methods will be related to what’s known about the human auditory system and our own mechanisms for pitch perception.