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The second A/V Systems assignment was to create 30 second sonic story. This is me eating cereal.

This piece was done as a final project for the avsys class. The concept is meant to be an installation piece that reveals a dystopian vision of the future when someone walks by. The camera senses motion and plays back a high pitched distorted sound and a dark image. The frequency of the sound changes depending on where the motion is detected, this is indicated by vertical colored lines that go across the screen as one moves. The project was built with OpenFrameworks and uses SuperCollider for audio.

Volume levels of audio input effect live video input. Done in collaboration with Nick H and Joe S.

Joe is rudely awakened if the average volume level exceeds the threshold. In collaboration with Nick H. and Joe S.

This project was created with Nick Hardeman and Joe Saavedra. It uses oF openCV blob detection example. Granules of sound are created based on parameters of the blobs detected. A maximum of 5 blobs can be detected at a time and each blob is mapped to a Granular Manager. The y-position of the blob changes the average frequency, area of the blob changes the frequency spread, the number of points in a blob changes the grains per second, the width of the blob changes the grain length spread. The volume and threshold for openCV are controlled through keyboard input.

And here’s a few visual representations of granular sysnthesis that I came up with.

In this non-linear sequencer each ball has a sample attached to it. The balls bounce off of the sides of the screen as well as each other. Clicking on the balls at the bottom starts or stops the same colored ball. The sample plays back when the ball hits either of the 4 sides of the screen. The speed of the balls can be adjusted by using the buttons provided at the bottom. The pan is determined by the location of the ball on the x-axis. This project was done in collaboration with Joe Saavedra, Nick Hardeman and Jen Cotton.

This is a simple sequencer programmed in OpenFrameworks for an avsys assignement. It uses 8 sin oscillators which can be switched on/off and their frequencies can be cranked up or down to produce a looping melody. The speed of the looping can also be cranked up or down. Here’s the source code.

Andrew Stanton, Jim Morris, and Ben Burtt discuss the amazing sound effects used in Wall-E.

Check out this great Physics lecture by Walter Lewin at MIT called The Sounds of Music. Lewin explains the concepts of sound and demonstrates how objects produce sounds with the help of homemade instruments. Really amazing!

The first A/V Systems assignment was to create 5 second sound clips using images as a source of inspiration. I used free samples and tweaked them with GarageBand and Audacity. Enjoy!