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| − | + | **[[Practice_sampling_pure_frequencies_A_ECE438F1|Playing an A 440 with MATLAB]] | |
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*Keep working on the [[Hw1 ECE438F11|first homework]]. It is due next Wednesday (in class). | *Keep working on the [[Hw1 ECE438F11|first homework]]. It is due next Wednesday (in class). | ||
Revision as of 11:43, 29 August 2011
Lecture 4 Blog, ECE438 Fall 2011, Prof. Boutin
Monday August 29, 2010 (Week 2) - See Course Outline.
In the fourth lecture, we computed the CTFT of signal that would "sound" like a middle C and the CTFT of a signal that would "sound" like the next higher C. We also obtained the DTFT of a sampling of each of these signals (using the same sampling frequency). It was observed that, while the sampling of middle C yields a DT signal that also sounds like a middle C, the sampling of the higher C does not at all sound like a C.
Relevant links:
Action items:
- Solve the following practice problem
- Keep working on the first homework. It is due next Wednesday (in class).
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