A "sabin" is a unit used to measure the sound absorption of a material or surface. It quantifies the effectiveness of a material in reducing sound reflections within a room or space. The sabin is named after Wallace Clement Sabine, an American physicist who made significant contributions to the study of architectural acoustics.
One sabin is equivalent to one square foot (approximately 0.0929 square meters) of perfectly sound-absorbing material. In other words, if a material has a sound absorption of 1 sabin per square foot, it means that it absorbs all sound energy that strikes it, and none is reflected.
Architects, acoustical engineers, and designers use the sabin as a measurement to assess and improve the acoustic properties of rooms, such as concert halls, theaters, recording studios, and offices. By selecting materials with known sound absorption coefficients and calculating the total sabin value for a space, they can optimize the acoustic environment to reduce unwanted echoes and noise.
A square inch (sq in or in²) is a unit of area commonly used in the United States and other countries that use the imperial system of measurements. It is defined as the area of a square with sides that each measure one inch in length.
In terms of square centimeters, one square inch is approximately equal to 6.4516 square centimeters (cm²).
Square inches are used in various applications, especially for measuring small areas, such as the size of a sheet of paper, the dimensions of electronic devices, or the area of specific objects or surfaces in everyday life.