The anechoic room is an enclosed space designed to reduce or eliminate outside sound interference. In the anechoic chamber, we can simulate a free sound field, that is, an acoustic environment without external interference, which is conducive to acoustic experiments, audio recording, noise testing, etc.

First, the design of an anechoic chamber requires consideration of the selection and arrangement of sound-absorbing materials. Usually, sound-absorbing materials, such as sound-absorbing cotton, foam, acoustic wedges, etc., are used on the walls of the anechoic chamber to reduce the reflection and transmission of sound. This can effectively reduce the resonance and echo of internal sounds, creating a smoother and clearer sound environment.

Second, the structure of the anechoic chamber also needs to be carefully designed to ensure the sealing and sound insulation of the internal space. The walls, ceiling and floor of the anechoic chamber need to have good sound absorption properties to prevent the penetration of external noise and better simulate a free sound field. At the same time, the door of the anechoic chamber also needs to adopt a special sound insulation design to ensure that it can effectively isolate external sounds when closed.

In a free sound field, sound propagation will be clearer and more accurate. Sound waves in the anechoic chamber will not be affected by the external environment, such as wind sound, vehicle noise, etc., so that the characteristics and characteristics of the sound can be better displayed. This is very important for acoustic research and audio recording, as it can provide a pure acoustic environment, making experimental results more reliable and accurate.

The free sound field of the anechoic chamber provides an ideal environment for acoustic research, audio recording, etc., allowing sound to spread freely without external interference. Through reasonable design and layout, the anechoic chamber can become an important tool in the field of acoustics, providing a high-quality working environment for scientific researchers and audio workers.