Track: Undergradute Research Competition

Abstract

The echo absorption system is the reduction of echo and noise reverberation within a room and in doing so helps to reduce the volume of noise, whilst increasing the clarity. Firstly, sound absorption material is particularly important for large enclosed spaces such as classrooms, cinemas, and exhibition halls. These huge and spacious rooms are subjected to echo sounds, even a drop of a pen can make a huge sound in these rooms; so, an acoustic material is introduced to reduce such echo. Secondly, sea life is affected by plastic on a huge scale. Billions of tons of plastic has been used on earth which is affecting everything on earth like: humans, plants, trees, animals, sea lives. To overcome such issues, we as human beings must do some efforts to reduce the waste of plastic. Every item comes in plastic bags e.g., disposal cups, grocery polyethylene’s, plastic bottles, etc. In this century every engineer would like to introduce sustainable material to clients/investors to make a safe and healthy living environment. Using plastic as a construction material is relatively new. The main objective of the paper is to take the first step and reduce the plastic from the earth by recycling & reusing plastic to reduce pollution. By using this acoustic material, we can reach to ideal sound absorption level. This paper describes a sustainable material that has acoustic properties. This material is made of perforated wood panels, fabric, and recycled plastic. An airborne test is conducted to find the noise reduction coefficient (NRC). The target is to have absorption CLASS A standard, the very highest rating in sound absorption. The acoustic testing data are presented for different thicknesses of these layers which will be fixed above block walls.The echo absorption system is the reduction of echo and noise reverberation within a room and in doing so helps to reduce the volume of noise, whilst increasing the clarity. Firstly, sound absorption material is particularly important for large enclosed spaces such as classrooms, cinemas, and exhibition halls. These huge and spacious rooms are subjected to echo sounds, even a drop of a pen can make a huge sound in these rooms; so, an acoustic material is introduced to reduce such echo. Secondly, sea life is affected by plastic on a huge scale. Billions of tons of plastic has been used on earth which is affecting everything on earth like: humans, plants, trees, animals, sea lives. To overcome such issues, we as human beings must do some efforts to reduce the waste of plastic. Every item comes in plastic bags e.g., disposal cups, grocery polyethylene’s, plastic bottles, etc. In this century every engineer would like to introduce sustainable material to clients/investors to make a safe and healthy living environment. Using plastic as a construction material is relatively new. The main objective of the paper is to take the first step and reduce the plastic from the earth by recycling & reusing plastic to reduce pollution. By using this acoustic material, we can reach to ideal sound absorption level. This paper describes a sustainable material that has acoustic properties. This material is made of perforated wood panels, fabric, and recycled plastic. An airborne test is conducted to find the noise reduction coefficient (NRC). The target is to have absorption CLASS A standard, the very highest rating in sound absorption. The acoustic testing data are presented for different thicknesses of these layers which will be fixed above block walls.