Anechoic Chamber

Hemi Anechoic Chamber

IAC Acoustics has installed hundreds of hemi-anechoic facilities to universities, research laboratories and test houses. Our range of single and double wall construction rooms allow for high precision measurements to be carried out in a hemi-anechoic environment.

Fully Anechoic Chamber

The IAC Acoustics fully anechoic room is designed for the research physicist or engineer who must make precise sound measurements in a free-field acoustic environment. rooms provide high sound transmission loss (TL) characteristics and have a completely anechoic wedge lined interior to meet these requirements.

Vehicle Semi Anechoic Chamber (VSAC)

With advances in room acoustics, test equipment simulation and signal processing, it is possible to conduct noise measurements indoors with a high degree of accuracy. IAC has been at the forefront of providing acoustic testing facilities to the automotive market.

Shake & Rattle Facilities

Shake and rattle facilities are typically used at the end of a production line before a vehicle leaves the factory but can also be performed in Hemi-Anechoic Chamber as part of vehicle development. The end of line variant is a final acoustic test to ensure there are no panels which squeak or rattle.

Pass By Anechoic Chambers

Road traffic noise is a main contributor to environmental noise, thus, it is intended to be reduced and limited by legislation in order to increase health and life quality. Vehicle pass-by noise tests are conducted according to the international standard ISO 362, which quantifies the noise emission of a vehicle in an urban traffic environment, by testing on an outdoor track.

Powertrain Anechoic Chambers

Powertrain testing is typically carried out inside a hemi-anechoic chamber to ensure high acoustic absorbency. A typical layout for powertrain test cells is with 2 or 4 independent dynamometers sitting outside of the test chamber, leaving only the engine and gearbox inside the hemi-anechoic room. IAC powertrain chambers allow functional testing of various powertrain and transmission types in a virtual vehicle environment.

Anechoic Ventilation Systems

A ventilation system must provide adequate air circulation at sound pressure levels below design criterion. IAC Quiet-vent® silencing systems are designed to provide approximately 15 air changes per hour in a typical anechoic facility.

Anechoic Chamber Refurbishments

The last two decades have seen an explosion in acoustic testing by automotive manufacturers, component suppliers, engineering institutions and educational organisations together with a rapid growth in the construction of new acoustic test facilities.

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