Year: 2009

Upcycled Gift Wrapping

By Vanessa Coppola The holidays are here, presents are bought (unless you are a procrastinator like me), and now the wrapping begins. I personally love taking the time to make the outside of a gift look just as great as what is inside. Tossing your gift into a store-bought bag is fine but hardly does […]

SPARK Project #3, Post #5

SPARK Project #3, Post #5

In my previous SPARK post, I created a program that sends serial port commands via an XBee transceiver to control lights plugged into a modified power strip. It was nice to see this level of functionality, but since this is my last SPARK post, I wanted to add a little pizzazz to the project. The […]

DIY ambisonic microphone

DIY ambisonic microphone

First up is Dan Hemingson’s “ambisonic” (Wikipedia) recording work. Shown above is the tetrahedral microphone array Dan uses to record his soundscapes, three of which he played back on the ACTlab’s surround-sound system. The tetrahedral microphone arrangement makes it possible to mathematically derive any number or spatial arrangement of surround-sound channels from the raw audio. Professional ambisonic microphones cost thousands of dollars; Dan put his together for nine bucks. He played amazing recordings of a babbling river, a clowder of feeding cats, and a pipe organ recital at UT’s Bass Concert Hall, while the audience milled about the room to experience the spatial simulation of sound. The realism was absolutely uncanny.