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Megasorber's Test Cube - a Reverberation Testing Chamber

Test standard:  
ISO 354:2003 'Acoustics – Measurement of sound absorption in a reverberation room'.

Sound Absorption Testing Based on Swiss Technology

An easy way to get reliable sound absorption test results for your acoustic materials in Australia!

The Megasorber Test Cube is a reduced size reverberation testing chamber and the only one of its kind in the southern hemisphere.

Utilising the Swiss technology, Megasorber Test Cube (also know as Alpha Cabin) is fully designed and manufactured by Autoneum.  The testing methods, results and reports produced by this reduced size reverberation testing chamber are globally recognised for the measurement of sound absorption properties of acoustic materials.  It complies to ISO 354:2003 'Acoustics – Measurement of sound absorption in a reverberation room'.

Megasorber Test Cube has been fully certified by Ford Technical Centre, Australia.

Reverberation Testing Chamber
Quick set-up and requires only a small sample size

Reverberation Testing Mics
Reverberation testing chamber microphones for measuring the sound pressure decay

Sound Absorption Measurement Test Results
Integrity and accuracy of results – widely accepted as a global testing standard

Measuring Sound Absorption of Acoustic Materials

Measuring the sound absorption of acoustic materials is often done either (1) using a standard reverberation chamber or (2) an impedance tube.

Megasorber's Test Cube is a reduced size reservation test chamber which has some advantages over these other methods.

Key Advantages of Test Cube

Advantages Over Standard Reverberation Chamber

Advantages Over Impedance Tube

Test Cube Key Features

The Megasorber Test Cube provides accurate results in the 400 Hz to 10,000 Hz range, which corresponds particularly well to the human speech and hearing range.

Contact Megasorber today to have your acoustic material tested

Technical Information About the Megasorber Test Cube Reverberation Chamber

The absorption coefficients of acoustic materials are usually measured using one of the two normalised methods. These are the impedance tube, or tube of Kundt, and the reverberation room.

These two methods differ by the incidence angle that the sound waves impinge on the surface of the material. In the impedance tube, the waves arrive at the surface perpendicularly, whereas in the reverberation room the angles of incidence are evenly distributed.

The absorption coefficients obtained with the two methods differ significantly. If comparative tests of the absorption of different materials are performed, the resulting rank ordering can be totally different, depending on which method is used.

As the sound fields encountered in most of the applications are much closer to that existing in the reverberation chamber than to almost perpendicular incidence, this method gives absorption coefficients which are more meaningful to the application than those obtained with the impedance tube.

Although this fact is recognised, the reverberation room is rarely used primarily because a large room and large samples are required. The measurements are also rather time-consuming to conduct.

Megasorber Test Cube is a reverberation room of reduced size to eliminate these disadvantages while keeping the advantages of the method.

Furthermore, Megasorber Test Cube provides the equivalent sound absorption coefficient of acoustic systems, such as moulded acoustic panels, baffles and full assembly 3D components.