This sound was recorded at the Campus of Poblenou of the Pompeu Fabra University, in the area of Tallers in the corridor A-B corner . It was recorded between 14:00-14:20 with a Zoom H2 recorder. The sound consist in a noisy impact of a stapler when it is working. The double action of the stapler is clearly differentiate as two different types of impact (different ressonance frequency)

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