A located sound project that explores notions of consumption and ownership within a space by allowing users to leave an audio trail as they move within the Real World. Exploring a 3D audio environment on headphones, users wear a GPS backpack and headphones and travel through an audio space in and around our building; their movements tracked and displayed tracing out the space of the city and leaving audio trails.

Imagine a playing field after a fresh falling of snow. The snow lies evenly and untrodden. Someone walks across the field leaving footprints, the snow is sullied, eroded, the walker has left a patina on the world. In the Aura world this patina is represented by filtering applied to the soft white noise.