AV lab consists of four rooms, a control room a recording room and two smaller rooms used for equipment storage (total area of 60 m ).

Recording Room: Is a box-in-box construction with volume of 71.2 m and internal dimensions H2.67m x W4m x L6.67m, a double window (L1m x W0.5m, 56 STC), double door (L1.8m x W0.9m, 53 STC) and a floating ceiling. The room is based on the Volkmann-Bolt design with a room ratio of 2:3:5 giving a homogeneous modal distribution. Sound pressure levels up to 100 dB-A can be produced in the room, without affecting the noise floor of neighboring offices. There is a low noise HVAC system installed (5kW heat load) keeping stable temperature and humidity. Noise floor is at 18db-A without and 22dB-A with HVAC operation. There are lines for 64 audio signals (48 inputs/ 16 sends), 6 SDI video signals and electricity. A triangular truss installed is used to hang all electricity/signal cables, lighting and cameras/microphones.

Control Room: Is a 16 m acoustically treated room with airco installed. For audio capture/processing we use a 48 channel console and a selection of pre-amps and outboard effects. There is Pro-Tools system installed with 16 channels analogue I/O and 16 channels AES/EBU I/O. For video capture we use a workstation equipped with Bluefish HD-SDI cards. Video signals are captured in raw format and all video routing is done with HD-SDI signals. The system is designed for capturing up to 6 HD-SDI and 24 audio channels. Audio and video signals are in-synch with a master clock.

Storage Room: One room covering a surface of 9 m.

Power Feed: There is a separate 3x64 Ampere feed from ETRO mains switch board. A distribution panel with ampere meter (on each phase) is installed in studio's control room. Audio and video equipment are powered from different phases.

Acoustic Treatment: AV Lab is using acoustic panels for controlling recording and control room acoustics. Design and construction of these panels was made here at ETRO. The idea was to use broadband absorption panels where depending on the wall area covered a different RT60 could be obtained. There is also a system for measuring RT60.