see the work at https://soundcloud.com/berlinwallofsound/the-berlin-wall-of-sound

To mark the upcoming 25th anniversary of the fall of the Berlin Wall, Grey Berlin, in cooperation with SoundCloud, has launched The Berlin Wall of Sound; an acoustic reconstruction of the Berlin Wall using SoundCloud’s signature waveform player. The Berlin Wall of Sound will take over the SoundCloud homepage for four days from Friday 7th to Monday 10th November.

Advertising Agency: Grey, Berlin, Gemany
Creative Managing Director: Oliver Handlos
Creative Director: Jan Lucas
Digital Director: Achim Weber
Managing Director: Matthias Meusel
Sound design: Patrick Petzold / Studio 206
Published: November 2014