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We began with a couple of exercises to understand the different ways of constructing periodic signals we have seen. We then continued modeling the vocal tract as a sequence of tubes and analyzing this model. We observed that the relationship between the airflow at each end of a cylindrical tube is just a time delay (positive for the air flowing right, and negative for the air flowing left). We wrote this relationship in matrix form. [[Lecture31ECE438F10|Next lecture]], we will describe what happens when the air flows from one cylinder to the next. | We began with a couple of exercises to understand the different ways of constructing periodic signals we have seen. We then continued modeling the vocal tract as a sequence of tubes and analyzing this model. We observed that the relationship between the airflow at each end of a cylindrical tube is just a time delay (positive for the air flowing right, and negative for the air flowing left). We wrote this relationship in matrix form. [[Lecture31ECE438F10|Next lecture]], we will describe what happens when the air flows from one cylinder to the next. | ||
| − | [[Hw9ECE438F10|Hw9]] is now posted. It is due next week. | + | [[Hw9ECE438F10|Hw9]] is now posted. It is due next week. I hope you will have fun analyzing the speech signal of Neil Armstrong as he stepped foot on the moon. |
Revision as of 11:39, 3 November 2010
Lecture 30 Blog, ECE438 Fall 2010, Prof. Boutin
Wednesday November 3, 2010 (Week 11) - See Course Outline.
We began with a couple of exercises to understand the different ways of constructing periodic signals we have seen. We then continued modeling the vocal tract as a sequence of tubes and analyzing this model. We observed that the relationship between the airflow at each end of a cylindrical tube is just a time delay (positive for the air flowing right, and negative for the air flowing left). We wrote this relationship in matrix form. Next lecture, we will describe what happens when the air flows from one cylinder to the next.
Hw9 is now posted. It is due next week. I hope you will have fun analyzing the speech signal of Neil Armstrong as he stepped foot on the moon.
Previous: Lecture 29; Next: Lecture 31
