The SI unit of specific acoustic impedance. When sound waves pass through any physical substance the pressure of the waves causes the particles of the substance to move. The sound specific impedance is the ratio between the sound pressure and the particle velocity it produces. The specific impedance is $1 N \cdot s \cdot m^{-3}$ if unit pressure produces unit velocity.
Newton Saat per Meter Kubik
Newton Saniye per Metreküp
Newton Second per Cubic Meter
Newton Second per Cubic Metre
Newton Seconde par Mètre Cube
Newton Secondo per Metro Cubo
Newton Secundă pe Metru Cub
Newton Segundo por Metro Cúbico
Newton Sekunda na Kubični Meter
Newton Sekunda na Metr Krychlový
Newton Sekunde pro Kubikmeter
Newtonium Secundum per Metrum Cubicum
Niuton Sekunda na Metr Sześcienny
Νιούτον Δευτερόλεπτο ανά Κυβικό Μέτρο
Ньютон Секунда на Кубический Метр
Нютон Секунда на Кубичен Метър