Case Study

Long-term sound masking for a multi-floor workplace

AET designed, installed and commissioned a bespoke sound masking system for DLA Piper Manchester, supporting confidential phone conversations and reducing distraction across open-plan legal workspaces.

129 Speakers installed
2 Floors covered
45dBA Open-plan commissioned level
4 Further offices supported

The acoustic challenge

DLA Piper required sound masking across open-plan areas where confidential phone conversations took place and speech could travel across the floorplate.

The aim was to reduce distraction, support productivity and help confidential conversations become less intelligible at distance.

01

Open-plan privacy design

AET designed the system around DLA Piper’s open-plan legal working areas and confidentiality requirements.

02

Ceiling void installation

Speakers were installed within the ceiling void, firing towards the slab to provide indirect, even sound masking.

03

Zoned adjustability

The open-plan areas were broken into adjustable zones so the system could be tuned to the workplace.

04

Out-of-hours delivery

Installation was completed out of hours, helping the system be introduced without disrupting workers.

Outcome

A discrete system for confidential legal work

The installation helped DLA Piper reduce sound travel across open-plan areas while supporting confidential conversations and focused work.

Confidential conversations

Sound masking supported legal teams handling sensitive phone calls in open-plan areas.

Reduced distraction

The system helped reduce the distance speech could travel across the floorplate.

Bespoke manufacture

AET-designed speakers were held in stock, with bespoke control equipment produced for the project.

Wider rollout

Following Manchester, DLA Piper expanded AET support to Birmingham, Leeds and Liverpool.

DLA Piper’s Manchester installation was introduced out of hours and later supported wider adoption across Birmingham, Leeds and Liverpool.
Case study note, DLA Piper Manchester

Answer practical questions clearly

Use FAQs to explain sound masking, privacy, installation, acoustic performance and what happens next.

What is sound masking?

Sound masking introduces a carefully controlled background sound that makes speech less intelligible and reduces distraction.

Where can it be used?

It can support open offices, private offices, meeting rooms and other spaces where speech privacy or focus matters.

How do we start?

AET reviews the workplace, understands the privacy or comfort challenge, then recommends an acoustic approach for the space.