Please Speak Into the Plant – The Visual Microphone from MIT

An astonishing piece of research from the folks at MIT CSAIL was announced for SIGGRAPH 2014. The paper from Davis et al (Abe Davis and Michael Rubinstein and Neal Wadhwa and Gautham Mysore and Fredo Durand and William T. Freeman), entitled The Visual Microphone – Passive Recovery of Sound From Video, shows how they were

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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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Extracting Audio From a Mix by Singing It – Source Separation via Input Matching

Paris Smaragdis is an assistant professor at the University of Illinois who specializes in research that involves machine listening. This includes source localization (where the sound is coming from), sound recognition (such as a traffic accident at an intersection) and source separation (taking individual voices or instruments out of a mix). Source separation is a

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