Acoustic absorption is a process by which a material, structure or subject takes in sound energy. When the sound waves are encountered, as opposed to reflecting the energy, a part of the absorbed energy is transmitted through the absorbing body according to the Twitter position or according to the room size. The absorption panel is very effective as it involves cladding to walls which results in no echoes as a result it gives the best audio performance. The absorption panel contains refection of sound and diffusion of sound used to treat variations such as echoes in rooms. Diffusers do not remove sound energy instead it is the best alternative to sound absorption. Diffusers are used to lessen the distinct echoes and reflections  while still leaving a live-sounding space and achieves noise reduction certification.