In honor of MLK day, I've replicated something that Corey Miller did for a term paper in an introductory phonetics course in the early 1990s. The point of the exercise is that any given speaker can exhibit a wide variety of different pitch ranges. 25 years ago this was a somewhat complicated business, involving digitization of tape recordings, use of expensive high-end computer workstations and so on. Today the whole process from start to end took me less than half an hour, leaving out the time required to write this post. I've put links to the relevant scripts at the end of the post — six lines of shell commands and a dozen lines of R.
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