Hemi-Anechoic Chambers

Hemi-Anechoic Chambers are used to perform precision- and engineering- grade testing on a wide variety of devices ranging from handheld units to large vehicles and equipment.
The sound absorption system consists of white melamine wedges installed on a patented clip system that provides fast wedge installation and removal. Melamine wedges provide a bright and fibre-free working environment.

Precision and engineering-grade sound absorption
Patented clip yystem
Bright and fibre free environment

Precision-grade testing

ETS-Lindgren’s standard hemi-anechoic chambers are designed to comply with ISO 3745 free-field limits for both broadband and pure tone testing.


ETS-Lindgren hemi-anechoic chambers are designed for applications that require precise acoustic measurements needed to optimize product design and performance of: 

  • IT Equipment such as server racks, routers, desktop computers
  • Pumps
  • Compressors
  • Small and large appliances
  • fans
  • Industrial equipment and components
  • Automobile components
  • Vehicles – cars, tractors, motorcycles


Applicable Test Standards

  • ISO 3745
  • ISO 3744
  • ISO 7779
  • ANSI S12.55
  • ANSI S12.54
  • ANSI S12.10