What is acoustic transmission?

Acoustic transmission occurs when sound waves pass through a barrier or material, resulting in noise on both sides of the barrier. Even seemingly solid or dense materials provide a lot of openings for sound wool. This phenomenon can be good or bad, depending on the application. For example, undesirable noise from neighbors may be an inconvenience, while the acoustic transmission in the recording studio may be desirable to create the best sound quality.

engineers and builders often integrate special techniques and materials into their projects to check the levels of acoustic transmission. These experts rely on the assessment of the audio transmission class (STC) to help them achieve the required level of noise reduction. The evaluation of STC material or structure measures the loss of transmission when sound waves pass at a particular frequency level. Many cities require walls of houses and buildings to meet the minimum StC rating to maintain a comfortable environment.

orM higher STC material evaluation, the more efficient it will control acoustic transmission. Manufacturers are testing products that provide STC evaluation information, although these evaluation holds only if the materials are used correctly. Stone materials, such as concrete and brick, offer some of the highest STC for walls, while insulation can help reduce acoustic transmission wood or metal frames. Even doors and windows have their own acoustic transmission evaluation, although special seals or weather can help control noise transmission.

In construction and other fields, designers have three basic ways to control acoustic transmission. The first is the use of materials that absorb sound waves such as cotton or glass fiber insulation. Another method is to use matter to fatal sound. Example of this includes the use of solid concrete blocks on build home rather than standard frameWood. Finally, designers can use air space to separate two areas, helping to reduce the amount of acoustic transmission between the two areas.

Acoustic transmission represents a number of problems for people in many applications. In households and businesses, noise from transport or mechanical systems may disrupt sleep, meetings or other activities. Even the transfer of noise from one room to another in the building can prevent privacy, which represents significant problems in health and business. In schools, noise can interfere with teaching and learning. Finally, even noise in theaters and music studies must be controlled to minimize the impact of undesirable sounds in the surrounding spaces.