These two almost identical rooms/cabins is also constructed as a "box in box". Outer box (building) is concrete and inside a box build by customdesigned standard "noise-silencer-modules". This innerbox is placed on rubber-suspensions.

This room is designed & constructed so that its possible to create small setups with headphones, computerscreen, mouse & keyboard for subjective listening tests. Cabins are also well suited for recording of eg speech-signals or low level acoustical signals from transducers etc. since the construction insures very good attenuation of noisesources for inside or outside the building.

Cabins is also used for testing/evaluating hearing of subject through standardized methods with audiometer and it is also possible with loudspeakers in freefield conditions in accordance with recommendations in ISO 8253.

Drawings/sketches of the room can be found below, and there's also a copy of the commisioning report from 2001 (internal)

A number of different electrical connections to controlroom makes is possible to create setups with a minimum of hardware placed inside the room during measurements. Like other special rooms there is intercom and optional videosurveillance available.