Absorption or Diffusion? What's right for me?

Purchasing acoustic panels from an online distributor can sometimes leave you feeling confused, as there isn't always much follow-up assistance for understanding panel placement.

Online acoustic panel companies may occasionally overlook the specific needs of their customers' spaces, potentially rendering the panels ineffective if the customer doesn't know where to place them. Understanding sound and the acoustics of a room can be challenging for the average consumer. To begin, it's best to distinguish between diffusers and absorbers. Let's break it down for you in simple terms.

The Challenge in the Acoustic Industry

Many modern rooms face sound issues due to hard, flat, reflective surfaces. These surfaces create excessive sound reflections and unwanted reverberation when exposed to direct sound. For example, controlled acoustics are essential in recording studios to capture clean and accurate sound, which is impossible with uncontrolled reflections. In contrast, concert halls aim to enhance the sound by utilizing the architecture of the space.

Acoustic panels are an excellent way to address both of these issues, although different sound environments require different products. This is where absorption and diffusion panels come into play.

Understanding Absorption Panels

You've likely encountered absorption panels before, as they are designed to absorb sound waves, reducing reverberation and echo. Excessive reflections and reverberation can negatively impact music quality, speech clarity, and overall comfort. To address these issues, absorptive panels are strategically placed in spaces like recording studios, home theaters, or offices to control and reduce sound reflections. Absorbent materials such as foam or fabric-covered panels are commonly used to absorb sound waves.




Exploring Diffusion Panels

Diffusion panels effectively disperse sound energy. When sound interacts with a diffuser panel, it scatters the sound waves as they re-enter the room. These scattered reflections help minimize echoes and reverberations, ultimately enhancing sound quality and speech clarity. Diffusion panels excel at controlling sound within an open room, which is essential for maintaining an open, spacious feel. Controlled reflection can be desirable in spaces like concert halls, enhancing the musical experience by enriching the sound and providing natural reverberation. When used correctly, diffusers contribute to creating a beautiful acoustic experience within a space.

It's important to understand that neither absorption nor diffusion panels create a soundproof setting. However, when placed correctly, they effectively balance a room's acoustic environment, enhancing the space rather than exacerbating sound problems.



Balancing Absorption and Diffusion in an Office

While absorption and diffusion panels serve different purposes, they can be strategically combined in an office space to maintain an open feeling while controlling sound reflections and ensuring speech intelligibility. Absorbing sound in specific areas of an office while deflecting it in others can create a well-balanced atmosphere for an office setting.

If you're interested in a step-by-step guide for acoustic panel placement in an office, here's a rough process to consider:



  • Assess specific acoustic issues in the office.

  • Identify primary reflection points (e.g., side walls, ceiling).

  • Install absorption panels at primary reflection points on walls and ceiling.

  • Use smaller absorption panels on workstation dividers.

  • Focus on meeting rooms with absorption panels for clear communication.

  • Consider acoustic ceiling panels or suspended baffles for overall noise reduction.

  • Balance with diffusion panels on less critical surfaces.

  • Add corner bass traps for low-frequency noise control if necessary.

  • Test and adjust panel placement for optimal acoustics.

  • Choose panel designs and colours that match the office decor.

  • Regularly maintain and clean panels for continued effectiveness.


If you're looking for real-world examples of how diffusers and absorbers can be used to achieve the perfect acoustic balance in a room, explore some of our featured projects by following the link below:

https://iss-sw.co.uk/projects

For a visual understanding of which panels suit your needs best, watch this informative example:

https://www.youtube.com/watch?v=1DHW5WdClrE

If you believe our expertise could assist in addressing your sound-related challenges, don't hesitate to reach out. We're here to help, and we'd be delighted to discuss your unique needs. Simply sign up for a callback, and we'll be in touch:

https://linktr.ee/Issacoustics

George Jones