Spring reverb is something we’re used to hearing about when it comes to guitar amplifiers. It’s a coil spring stretched the length of the amp’s housing. One end is fed the guitar signal, with a pickup at the other to capture the output. But this spring reverb is on a much grander scale. [Jochem van Grieken] strung up 100 meters of coiled steel wire in a long hallway and the results sound a little bit evil.
A simple piezo element is used as a pickup to amplify the sound coming off of the spring. Above [Jochem] is using what looks like a jeweler’s saw to make some sound on the 3.5mm wire. It’s this portion of the video that sounds demonic to us. In the second half of the demonstration he strikes the wire with a ruler to produce the pew-pew effect from many a sci-fi movie.
This isn’t his first experiment with the concept, it’s just his largest. Also found after the break are a pair of links to his other installations.