Reference sounds

Grass

Absorption and reflection

Documentation of a central square area with and without snow. The traffic intensity was similar on both occasions.

Snow absorbs sounds, and so does for example soil and peat. A greener city will therefore involve a lower background noise and create better conditions for a more relevant audio environment, where completely new sounds will be able to come out.

Aspen tree and birch

Aspen tree and birch. Recorded in Stadsskogen, Uppsala.

Beech hedge

Beech hedge in winter season. Recorded in Solbacken, Malmö.

The sea

The sea. Recording from the west coast of Denmark.

Water wall

Water falls directly against hard material which creates a relatively high-frequency sound. The sound is reflected and reinforced against the wall, and once again toned  by the material.

Solbjerg Plads, Köpenhamn