Here’s an excerpt from the interview by Miguel Isaza, dated back to April 19, 2012

For Unseen Noises (USO002) we used telephone tap coils that receive electromagnetic signals around us and convert them into audible information to discover invisible and surprising aspects of the environment in which we live in. To widen our sound palette, we explored cell phones, tablets, light systems, automated teller machines, wireless communication systems, anti-theft security devices, surveillance cameras, computers, navigation systems, wireless Internet routers, neon advertisings, public transportation networks. We just used the system of electromagnetic induction as way of amplifying musical sounds. Our efforts were focused on finding “articulated” behaviours and other musical qualities in them. Note that the files contained in “Unseen Noises” are real performances executed on different devices without editing. 

 

[read the full article on Designing Sound]