Latest revision as of 04:54, 30 October 2013

Lecture 30 Blog, ECE438 Fall 2013, Prof. Boutin

Wednesday October 30, 2013 (Week 11) - 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

1. a gain factor
2. a two time unit time-delay
3. 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

• Finish HW9. It is due Friday.

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