Audio Illusions explained by ASAP Science

I’ve been enjoying the videos from ASAP Science on Youtube recently. These are the same guys that created the ‘How Old Are Your Ears’ video and do a great job of explaining relatively complicated topics in simple and entertaining ways. Below is a video that explains some of the audio illusions from this post in their usual style.

(via Gizmodo)

Using Fire to Visualize Music – A 2D Ruben’s Tube

A Ruben’s Tube is a gas pipe with multiple holes along the way which is used to demonstrate the principle of standing waves. When a suitable frequency is found, areas of high and low pressure (the nodes and antinodes) affect the flow of gas out of the pipe and therefore the height of the flame.

Below is a video demonstrating a 2D planar version of a Ruben’s Tube which makes a fantastic music visualizer!

Compressed Sensing – An Introduction

This week Emmanuel Candès, professor of Mathematics and Statistics at Stanford University has been elected to the American Academy of Arts and Sciences. He is one of the authors (the other being Terence Tao) of the paper which brought about the field of compressed sensing. If you’ve ever done any signal processing, then you’ll know

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The Loudness War – Now with Data and Charts!

I’ve mentioned The Loudness War before – squashing the dynamic range of a track to try and boost the loudness to make it stand out – but has a great post with an in-depth explanation and the data to back it up. Paul Lamere of The EchoNest analyzed over 15,000 tracks to measure their loudness (and shows

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