https://www.youtube.com/watch?v=kxvQxQEC-BI&ab_channel=PELSER%26StillDesign

One of the main features of sound is that it reflects off walls and the objects in a space. Hard materials like glass and concrete reflect more sound than soft ones, such as wood and textile. The reflection of sound in a space is called reverberation. This is exactly what we focus on when we tune a space for a specific activity by using wall panels, acoustic objects, and flexible Ceiling Click Panels.