e/Diffusion (acoustics)

Information
has gloss	eng: Diffusion, in acoustics and architectural engineering, is the efficacy by which sound energy is spread evenly in a given environment. A perfectly diffusive sound space is one that has certain key acoustic properties which are the same anywhere in the space. A non-diffuse sound space would have considerably different reverberation time as the listener moved around the room. Virtually all spaces are non-diffuse. Spaces which are highly non-diffuse are ones where the acoustic absorption is unevenly distributed around the space, or where two different acoustic volumes are coupled. The diffusiveness of a sound field can be measured by taking reverberation time measurements at a large number of points in the room, then taking the standard deviation on these decay times. Alternately, the spatial distribution of the sound can be examined. Small sound spaces generally have very poor diffusion characteristics at low frequencies due to room modes.
lexicalization	eng: diffusion
instance of	(noun) the study of the physical properties of sound acoustics

Meaning
German
has gloss	deu: Diffusität (Zerstreuung) oder genauer Schalldiffusität beschreibt allgemein den Grad der Verteilung von reflektiertem Schall einer Quelle im Raum und über die Zeit. Der Begriff hängt eng mit der subjektiven Vorstellung eines diffusen Raumklangs zusammen und wird nicht immer gleich angewendet. Es existiert keine mathematische Beschreibung als Größe und folglich auch keine zugeordnete Einheit.
lexicalization	deu: Diffusität
Italian
has gloss	ita: Un diffusore acustico, o anche semplicemente diffusore se è chiaro il contesto acustico, è un trasduttore o un insieme di trasduttori che trasformano il segnale elettrico proveniente da un amplificatore acustico in suono.
lexicalization	ita: Diffusore acustico
Dutch
has gloss	nld: In de muziektheorie spreekt men van diffusiteit met betrekking tot de akoestiek van ruimten, wanneer men wil aangeven in welke mate het geluid in een ruimte verstrooid wordt.
lexicalization	nld: diffusiteit

Media
media:img	MLS diffusor.gif
media:img	Quadratic diffusor.gif