Sabin
A sabin is a unit of sound absorption area used in acoustics. It measures how much sound is absorbed by a surface.
1 sabin equals 1 square foot of perfectly absorbing surface (in imperial units) or 1 square meter (in metric units).
It helps quantify the acoustic absorption of materials in rooms or auditoriums.
Sabins are important in designing spaces with good sound quality by controlling echoes and reverberation.
Are [a]
An are (a) is a unit of area equal to 100 square meters (m²). It is commonly used in land measurement, especially in some European countries. 1 are = 100 m² = 0.01 hectares. Ares are useful for measuring small plots of land or gardens.