Harmony in open spaces: navigating acoustic solutions for open-plan environments

Acoustic design in the workplace is critically important as it directly impacts productivity, communication, and employee well-being. A well-designed acoustic environment minimises distractions by controlling and absorbing noise, allowing employees to focus better and work more efficiently. 

Investing in acoustic design fosters a harmonious work environment that enhances overall job satisfaction and performance. Here, we speak to Mumble By Design’s Jacqui Hawksworth to learn more about the challenges of managing noise in open-plan offices, and the solutions for creating acoustic harmony. 

The challenges of managing noise in open-plan offices

No two open-plan offices are the same, and managing noise in open-plan offices poses many challenges, each requiring a specific strategy that addresses the unique space.

One of the most common challenges in open offices is the distraction caused by conversations. Whether work-related or personal, these can significantly hinder an employee's ability to concentrate. "Conversations around the office can be highly distracting," says Hawksworth. "Implementing sound-absorbing materials, such as acoustic panels, carpets, and ceiling tiles, can help dampen the noise.” Additionally, creating designated areas for phone calls and small meetings, as well as promoting the use of quiet zones, can effectively mitigate this issue.

Privacy is another critical concern in open-plan office environments. The lack of enclosed spaces can make it difficult for employees to have private conversations or focus on confidential tasks. Hawksworth suggests practical solutions: "Creating enclosed meeting rooms or using soundproof phone booths can provide spaces for private discussions. Acoustic screens or room divider partitions can also help create semi-private areas within the open space." By designing distinct zones for different activities and using sound-absorbing materials and furniture, offices can balance the need for privacy with the desire for collaboration. 

Echoes and reverberation are further complications in modern office designs, particularly in spaces with hard surfaces and high ceilings. "Using materials that absorb sound, such as acoustic wall coverings, upholstered furniture, and ceiling baffles, can reduce echo and reverberation," Hawksworth explains. Incorporating plants and other soft furnishings also contributes to a quieter environment by breaking up sound waves and adding aesthetic value.

Lastly, fostering a culture of noise awareness and management is essential for maintaining a productive office environment. Many employees may not realise the impact their noise levels have on their colleagues. "Educating employees about noise management and encouraging a culture of respect for others’ need for quiet can be effective," says Hawksworth. Providing noise-cancelling headphones and promoting their use can also help individuals manage their work environment better.

Optimising acoustic design in open-plan workspaces

One prevalent misconception is that acoustic design is solely about soundproofing or eliminating noise. However, effective acoustic design aims to manage sound rather than eradicate it entirely. Another misconception is that adding more acoustic materials will automatically improve the sound environment. “Materials like acoustic panels and carpets can help absorb sound,” says Hawksworth, “but their placement and quantity must be carefully considered to achieve the desired results”

Additionally, many people believe that acoustic design only addresses noise from conversations, overlooking other sources such as equipment or HVAC systems. Hawksworth emphasises the importance of a holistic approach: “Debunking these misconceptions involves emphasising the importance of creating a balanced acoustic environment that considers various factors, including sound absorption, sound masking, and noise control measures.

The choice of materials and furniture in an open-plan workspace significantly impacts its acoustics. Materials with different textures and densities absorb or reflect sound waves, directly influencing the overall sound environment. “Materials like PET acoustic panels, carpets, and soft furnishings absorb sound, reducing reverberation and minimising noise levels,” Hawksworth notes. “Conversely, hard and smooth surfaces such as glass, metal, and bare walls tend to reflect sound, leading to increased reverberation and potential noise buildup.” The layout and placement of furniture also influence sound transmission and diffusion, affecting the overall acoustic quality. Hawksworth advises, “By carefully selecting materials and furniture that balance sound absorption and reflection, designers can create open-plan workspaces with optimal acoustics, fostering productivity, comfort, and well-being for occupants.”

Using acoustic design to enhance brand identity 

Acoustic design can also significantly contribute to the branding and identity of a company or organisation within an open-plan setting. The choice of materials, colours, and design elements used in acoustic treatments can reflect the company's brand values and aesthetic preferences. “Incorporating branded colours or printed logos into acoustic panels or furniture can reinforce brand identity throughout the space,” says Hawksworth. The atmosphere created by the acoustic environment can convey the company's culture and values to employees, clients, and visitors. “A well-designed acoustic environment that promotes collaboration and productivity can signal innovation and forward-thinking, aligning with a company’s desired brand image.”

Emerging trends in acoustic design for open spaces

Emerging trends in acoustic design for open spaces incorporate smart systems, biophilic elements, and adaptive materials. These smart systems utilise IoT technology to monitor and adjust noise levels in real-time, ensuring optimal acoustic conditions. Biophilic design integrates natural elements like wood and plants, which enhance sound absorption and improve well-being. Adaptive materials, which alter their properties based on environmental conditions, are becoming more common, offering dynamic sound management. 

“These trends collectively aim to create more responsive, sustainable, and user-focused acoustic environments in open spaces," says Hawksworth. 

Innovations such as customisable soundscapes and eco-friendly materials are also gaining popularity, reflecting a shift towards personalised acoustic solutions and sustainable practices. Additionally, VR and AR are being used for acoustic planning, allowing for virtual testing and refinement, while collaborative design processes engage end-users to tailor acoustic solutions to their needs. 

Explore acoustic solutions for open-plan workspaces from Mumble by Design