Background Sound brings the sounds of everyday life into view before your eyes. The world is a surprisingly noisy place. Now you can explore the many natures of the sounds around you, from their wave-like appearance & modulating volume to rich frequency spectra. After installing this, you may be tempted to sing into your phone on the train; I'd advise against it - people will stare, trust me (or at least don't say I didn't warn you!)

Featuring:
- 3 visualization modes
- temporal wave
- volume blob
- frequency landscape
- customizable appearance
- careful battery use
- clever algorithms built-in (Fast Fourier Transform (FFT))