FAQ

A sound shielded room or silent box gives you a test environment with very low background noise, so the acoustic signal of the product under test is not masked by outside noise. The result is accurate and repeatable measurement. This matters especially for the audio testing of motors, appliances, speakers and phones.

Electromagnetic shielding uses a shield made of conductive or magnetic material to hold the electromagnetic field on one side of a boundary, so the inside and outside of the shielded space do not interfere with each other. It keeps outside waves from disturbing precise measurement inside, and it keeps a device’s own emissions from leaking out. This makes it the basis of EMC testing and sensitive electronic measurement.

Correct shielding means choosing the material and structure to suit the target frequency range, keeping the shield electrically continuous and well grounded, and properly treating leakage at openings such as doors, windows, vents and cable entries. The shielding effectiveness has to be confirmed by professional testing, so the design and build are best handled by a vendor with experience in both acoustic and electromagnetic engineering.

Isolation depends on the type and structure of the equipment. A sound enclosure usually reaches 20 to 40dB, a soundproof or silent room can exceed 50dB, and a silent box reaches around 50dB of isolation. Real performance also depends on frequency, the number of wall skins and the quality of the sealing, so we design a custom solution around the figures you are aiming for.