Acoustic materials help us achieve our acoustic targets by controlling how sound waves interact with surfaces within a space. By selecting and placing these materials, we can manipulate sound absorption, reflection, and transmission to meet the precise functional needs of a room.
We look into porous materials such as textiles, curtains, fibrous panels, and open-cell foams, which are good for high-frequency absorption, and resonant constructions such as perforated panels or slit absorbers, which extend absorption to low frequencies. We examine how diffusing surfaces, such as bookshelves, irregular masonry, 3D-printed panels, and more, scatter energy rather than remove it. Samples are examined in class, and an acoustic walk across campus connects them to the built environment. You will be able to read absorption coefficients and position materials accordingly.
