The exhibition has been produced by the Barcelona Provincial Authority in partnership with Terrassa City Council, with a structure divided into three conceptual sections:
1. Introduction
This provides an insight into the main pollutant contexts, and the importance of collective action to combat pollution.
2. The letters SOROLL
Using the letters of the word "noise" in Catalan, SOROLL, this section contains information about sound and its characteristics, as well as auditory perception:
S Distinction between sound and noise
O The characteristics of sound (frequency, intensity, pure sound and timbre)
R Auditory physiology: noise and health
O The intensity of sound. Scale of intensities
L Sounds and vibration
L Interference, diffraction and resonance
3. The fight against pollution
This is subdivided into two sections: "Sound transmission. Acoustic barriers and installation", focused on ways to attenuate the transmission of sound, while "Noise control and noise pollution. Current legislation. Sound maps" highlights the respective roles of the general public and public authorities in controlling noise and combating noise pollution.
