Call Notes is an audio installation for public spaces. Solar powered speaker devices play the sounds of birds singing popular melodies. Mimicking the location and sound quality of real birds, these devices are hidden in trees along sidewalks and in public parks. I hope to inspire a sense of aural discovery, curiosity, and delight, as passers-by encounter the birds in their daily routines.
Call Notes was created using a unique mix of software and hardware. To begin, bird field recordings are analyzed using FFT analysis. This data is transformed to fit the melodies and rhythms of a particular pop tune using custom sound software written in SuperCollider 3. The transformed bird calls are then formatted for firmware running on an AVR Microcontroller, and the program is burned into the chip. The solar speaker device is wired, waterproofed, and sent out into the world.