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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. 

Air-borne sound

Air-borne sound is defined as the propagation of sound waves through the air. Air-borne sound propagates only in the form of longitudinal waves.

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.

Noise control

Equipping the room with noise control materials reduces the sound level (and hence the perceived noisiness) and improves speech intelligibility. Such an improvement of acoustic conditions makes for a much more pleasant atmosphere. Porous and fibrous materials such as open-cell foams or non-wovens are excellent sound absorbers. But also closed-cell foams with a special cell structure, for instance our soni RESIST, score with good sound absorption capacity.