LABORATORY MEASUREMENTS
Level Acoustics is located in the Laboratorium voor Akoestiek of Eindhoven University of Technology. The laboratory has three sound transmission rooms, one of which is a reverberation chamber where the following acoustical measurements can be performed:

Sound absorption
A consultant sometimes needs to know the absorption coefficients of new or untested materials, while designing a hall or room. Also, product developers may need indicative measurements during product design. Level acoustics can measure the sound absorption in a reverberation room (ISO 354) of a 10-12 m² sample or in a impedance tube (Kundt tube) of a small 4 cm round sample (ISO 10534-2).

Sound Insulation – Transmission Loss
In the acoustics laboratory, the sound insulation (or transmission loss) of glazing and wall panels can be determined in the small opening of 1,88 m² according to ISO 140-3. The dimensions of the test panels are w x h = 1230 x 1480 mm². The small opening is specifically interesting in the product development stage to test different variants fast without the need of a full wall of 10 m². Besides that, the laboratory has a 10 m² floor opening to test the impact and airborne sound insulation of floor and roof constructions.
  The sound insulation of a floor or
  roof construction can be measured
  in the 10 m² opening in the
  Laboratorium voor Akoestiek


Dynamic stiffness
We can measure the dynamic stiffness of under floor materials according to ISO 9052-1. For the measurement 3 samples per material are needed with dimensions of 200 x 200 mm².

Sound power
The sound generation capabilities of equipment and machinery is characterised by the sound power level of the device. It is possible to determine the sound power level of equipment by the reverberation room method and the sound intensity method according to ISO 3741.




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