What Are Acoustic Baffles, And Where Do We Use Them?

tvs absorb baffles

Acoustic baffles are hung from ceilings to absorb sounds and reduce reverberation and echoes. They are used in large, open spaces like shopping centres, sports halls, concert halls, gymnasiums, hotel lobbies and manufacturing plants.

How do they work?

When sound waves hit the panel, they penetrate it, causing the fibreglass core to vibrate. This vibration creates friction, which converts the sound to heat.

The sound absorption rate is typically between 90-100%, so acoustic baffles are an excellent way to reduce noise levels in open spaces. Depending on the baffle’s materials, it can also target problem frequencies.

Why use acoustic baffles?

Acoustic baffles eliminate the issue of reverberation in spaces with high ceilings. Most high ceilings are made from highly reflective surfaces like glass and steel panelling, and baffles absorb sound that would otherwise be reflected.

When sounds hit reflective surfaces, they bounce off because only a small amount of sound is absorbed. In contrast, when sounds hit baffles, they penetrate the panel and are diffused with friction, converting the sound to heat.

Where should they be used?

Acoustic baffles are found in most public spaces with high ceilings, including shopping malls, cinemas, theatres, concert halls and swimming baths.

They are perfect for buildings with high ceilings but can be positioned at any height, so they are also suitable for moderately high ceilings.

For even greater acoustic control, we can also use acoustic wall panels. These reduce noise even further, making spaces quieter.

What are acoustic baffles made from?

Acoustic baffles have a fibreglass or foam core sandwiched in plastic, rubber, or aluminium, or they can have no outer wrapper. Fibreglass baffles are the best at absorbing sound, with a sound absorption rate above 90% when rated class A.

How are acoustic baffles installed?

Acoustic baffles are suspended from ceilings with steel wire rope or chains, and they require minimal labour to install and can be staggered at different heights. If you have open rafters, the installation will be as simple as fixing the rope to them.

The ideal application is rooms with exposed metal joists, such as industrial plants, shopping centres and sports halls. If you have a solid ceiling, fixing points need creating, but rest assured, these are simple to make in most cases.

We can recommend acoustic baffles based on your needs. Feel free to contact us for free advice about your acoustic requirements.