SEM ZEEMAN

Located at the European Route E25, connecting North- and South Europe, were just a fraction of it is located in the Rotterdam-The Hague metropolitan area as the Rijksweg 20 or A20. This motorway supported by several overpasses through South Holland, which one of them forms the base of this piece.

While the fast pace of humanity causes hot asphalt and infrasound moving through the construction, underneath a slower pace is causing more innocent bouncing echo’s. Impulse responses from the overpass echo’s are used to create a somewhat terrifying reverb scape, slowly building up. Dynamic impacts from the bouncing road surface above irregularly causing reflections scattering around the overpass’ concrete. These metallic-like hits are caused by vehicles passing the overpass.

The never ending sound waves once in awhile gets dominated by several other sound sources. Car horns translate the frustration from within, while trying to balance it out by amplified FM frequencies. Though this more pleasing part of the electromagnetic spectrum gets interfered by nasal higher frequencies from passing metros and trains. These pitched-down electromagnetic signals forming cold resonant harmonics.

These massive amounts of weight rolling over the railway also results in ground shaking infrasound allover the area. Rumbling frequencies vibrates through the concrete pillars underneath the overpass. Moments later fireworks suddenly feeds the already existing sonic tangle, followed by emergency signals which appear not less distinctive without the optical parts.

A narrative of a metropolitan area formed by a collection of sources both auditive and non-auditive for human. Recordings are partly manipulated by equalisation and time-based effects to create a soundscape from noise pollution by the pace of humanity.

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