Acoustic Parameters for Passive Noise Control

[Alminger]

1. Homework Statement

Actually I am doing a research project about Noise Isolation. I took my college cafeteria as an example and I was provided with a Noise Simulation software( Soundplan). There I can work mainly with the SPL and the absortion coefficients. I found another software ( EASE) but I neither can afford it nor have time for working on it. So i need a solid base for using only the SPL and the absortion. If not

2. Homework Equations
Which are the acoustic parameters for Passive Noise Isolation and in which books can I find that?


3. The Attempt at a Solution
Because passive noise isolation consist in using panels or coverage it mainly consists in reducing reflectivity and absorbing noise , mainly I need a bibliographic references that whether say I´m right or wrong

 

[KataKoniK]

, and what are the best materials to use.


Hello,

Thank you for sharing your research project on noise isolation. It's great that you are using simulation software to study the effects of sound pressure level (SPL) and absorption coefficients on noise isolation in your college cafeteria. I understand that you are looking for a solid base for using only SPL and absorption in your research, as well as information on the acoustic parameters for passive noise isolation and recommended materials to use.

Firstly, I would recommend consulting with your college's library for relevant books on acoustics and noise isolation. Some recommended books include "Acoustics and Noise Control" by Barry Truax, "Noise Control: From Concept to Application" by David Y. M. Yau, and "Noise and Vibration Control Engineering: Principles and Applications" by István L. Vér. These books will provide you with a solid understanding of the basic principles and parameters of acoustics and noise control.

In terms of passive noise isolation, the key parameters to consider are sound absorption, sound transmission loss, and sound reflection. Sound absorption is the ability of a material to absorb sound energy, while sound transmission loss is the reduction of sound energy when passing through a material. Sound reflection is the amount of sound energy that is reflected off a material's surface. These parameters are interrelated and can be manipulated through the use of different materials and configurations.

Some recommended materials for passive noise isolation include acoustic panels, acoustic ceiling tiles, and sound-absorbing curtains. These materials are designed to reduce sound reflection and absorb sound energy, thus improving noise isolation. You can also consider using sound barriers, such as walls or partitions, to block sound transmission.

I hope this information helps guide your research project. Best of luck with your project!