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Introduction to Wavelets and Filter Banks

Although the history of filter banks and wavelets has been brief, they have had a large impact on signal and image processing. Filter banks, which came first, are used for a number of different audio (1D), images (2D), and video (2D frames changed 30 times every second for interlaced video) applications. Filtering is a linear […]

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Headphone Buying Guide

A few months ago, a couple of students in my class asked me to help them repair the wire to their ear bud headphones. I looked at them with a puzzled look, thinking why would they want to do that? So I told them the time it takes to fix a good connection between the […]

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