What is transmission loss sound?

Transmission loss refers to the reduction in sound energy as it travels from the source to the receiver through a medium (such as air, water, or solid materials). It is measured in decibels (dB) and is affected by various factors such as distance, frequency, and medium properties.

The higher the frequency of the sound, the more it is attenuated during transmission due to absorption and scattering by air molecules. The density and composition of the medium can also affect sound transmission. For example, sound travels faster and with less attenuation in water than in air.

Transmission loss can be significant in architectural and engineering applications, where it is important to control noise levels and ensure adequate sound insulation between different rooms or areas. Various design strategies such as acoustic barriers, wall constructions, and window treatments can be used to minimize transmission loss and improve acoustic performance.