soniflex Lexicon
Die neusten Einträge
Sound reduction index R
Sound reduction index R is a logarithmic value that quantifies the level of sound insulation provided by building components. R depends on the frequency and angle of incidence of the sound waves. The sound reduction index describes the sound insulation capacity of a given material. It is calculated as the ratio of the total incident sound intensity to the amount of sound intensity that the material lets through. A high R value equals a low transmission factor and hence a high sound insulation effectivity.
Impact/footstep sound
Footstep sound is a type of solid-borne impact sound caused by people walking about on hard surfaces. Dedicated impact sound insulation materials (foams, non-wovens) can be used to minimize such sounds.
Die meist gelesenen Einträge
Sound insulation
Sound insulation is the acoustic shielding of a room or device in order to prevent or reduce the transmission of air-borne or solid-borne sound to neighboring spaces. The aim is to prevent the sound from propagating by using sound insulation materials to build a sound barrier around the noise source.
Closed-cell foams
In closed-cell foams, the walls between the individual cells are completely closed. As this prevents the penetration of liquids and vapor etc., closed-cell foams are suitable for use also in spaces with increased moisture load.