Moving a vinyl record back and forth is a classic DJ trick and a great way to create rhythmic sound effects. Scratching is historically associated with...

The crackling sound of a record player….. This is the sound of a vinyl record playing “after the record is done”. That is the needle is scratching...

The annual City Festival in Linkoping is a large event that attracts around 300.000 visitors each year. It takes place late august when a lot is going...

Landing procedure of the Lufthansa CRJ 900 /-NextGen passanger airplane from the first announcement in the air to the finish at the Trieste airfield. Actual...

Graffiti artist Tomi Lastunen painting a transformer house wall. Lastunen is a well known street artist who also has taught graffiti painting in schools....

Sounds recorded at the sludge dewatering mixer. Fermented sludge following biogas production goes there. The dewatered sludge contains about 25% dry matter...

Sounds recorded at the sludge dewatering press. Fermented sludge following biogas production goes here. Dewatering is necessary so that the waste can be...

Sounds recorded in the building with heat exchangers which heat the sludge to a temperature of about 38oC. Heated sludge goes to four tanks which are separate...

Sounds recorded at a secondary tank, where the sludge from mechanical and biological treatment is mixed. The waste will be used for biogas production. The...

Soundscape recorded at the biological sludge thickening station. Sludge generated in the course of biological and mechanical treatment is used for biogas...

Sounds recorded at the place where treated sewage goes into the measuring chamber, just before it is discharged into the Drwina River. The parameters of...

Soundscape recorded on the platform above the biological reactor. The plant has five biological reactors each with a capacity of 27,000 m3 and the size...