Sound Absorption and Sound Transmission — What’s the Difference

In solving acoustical noise challenges, we are often asked, ‘What’s the difference between sound absorption and sound transmission?’
To understand how sound absorption and sound transmission differ, let’s look the definition and examples of each term.
Sound absorption refers to the elimination of reverberation within a room. This can be achieved by using panels to soak up the sound waves before they can reflect off the hard surface behind them and bounce around the space. This will lower the level of background noise in a given space, but generally will do nothing