Our customers often require a special quiet environment for products testing. This particular quiet environment should be an anechoic room or a quiet room. How to tell which one it is? Let's make it clear.

The quiet room is an acoustic room with low decibel. It can also be said that it is an anechoic room with low matching version. It mainly provides a quiet sound environment to test the product noise, or to listen to abnormal noise, noise, etc. Its function is relatively simple and the cost is relatively low. The index parameter to measure the quiet room is also relatively simple. That is the background noise.

The anechoic chamber is much more complicated. In addition to the background noise, it also meet the requirement of the index parameters of cut-off frequency and free field radius. In addition to measuring the noise value, it can also measure the sound power level and sound pressure level of products. It can also meet the requirements of acoustic performance test and analysis of electroacoustic products, accurate measurement, measurement and calibration of acoustic devices.

If you need to build an acoustic room and you want to judge whether it is an anechoic room or a quiet room, the main criterion is what indicators you need to test and what test tasks you need to complete.