Rainwire – A test recording with new pickups
D Burraston – 25-02-2011
The Rainwire project forms part of an art/science initiative to investigate environmental sonification of land based natural rainfall using large-scale long wire instruments.
Feb 16th – Test rainfall sonification recording of newly installed pickups on the Sputnik research wires. Two pickups on each wire. This recording is from the top wire (2.5mm diameter). The recording was made using two low power valve preamplifers (the silver cases in the images below), custom built at WIRED Lab, which cope better with large scale impulses than their transistorized counterparts. This recording was conducted as part of the Centre for Research in Complex Systems (CRiCS) Rainwire project at CSU.
Click on the images below for a close up spectrum view of very short sections of the recording. The first plot is a linear frequency scale, note the extensive amount of high frequencies present. The second plot is a logarithmic scale which shows some of the lower frequency content in more detail.
Below are some images giving a quick view of the process of making the pickups and attaching them to the wire for this test recording. Click on each image for a high resolution display.