A fully anechoic chamber is built with sound absorption wedges on all 6 interior surfaces of a room. An anechoic chamber must usually meet the requirements described in ISO 3744 or ISO 3745. This allows electronics and machinery to be tested and certified according to various standards.
A semi-anechoic chamber or hemi anechoic chamberis a room with sound wedges inside on all walls and in the ceiling. A hemi anechoic chamber is used by the automotive industry, universities, research laboratories and test houses, among others.
A flat anechoic chamber is an almost anechoic chamber covered in flat sound absorbers on 5 of the rooms 6 inner surfaces. This is also called a planarchoic chamber. Flat anechoic chambers are used in situations where the acoustic requirements are not quite as strict.
IAC also offers small anechoic and soundproof boxes. We can tailor a box to fit you exactly, or we can produce one of our standard models: Microdyne and MAC.