Lecture 36 Blog, ECE438 Fall 2014, Prof. Boutin

Wednesday November 19, 2014 (Week 13) - See Course Outline.

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Today obtained the transfer function for a simple approximation of the vocal tract consisting of an infinitesimally thin tube followed by two tubes of same length but different cross-areas. We noted that the transfer function contained

  • a gain factor
  • a two time unit time-delay
  • an all pole filter.

We discussed the relationship between the mathematical espression we obtained for the transfer function and the action of the vocal tract on a pulse-train of air flow to produce voiced phonemes.

Action Items

  • Keep working on HW 10. It is due Monday.


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