Global law firm Wragge & Co moved into the brand new Snow Hill development in early 2014. The working culture of the business had moved away from cellular offices for Partners and Fee Earners to 100% open plan. As a result the business was mindful of maintaining acceptable levels of privacy and concentration for these senior staff members.
Acoustic practices Cundall Acoustics and Equus Partnership both recommended the implementation of sound masking as means of controlling the noise floor.
After a hard fought procurement process LogiSon sound masking was selected as the preferred system. The presence of having the market leading system, the importance of controlling very small areas/zones, plus the day 2 management were key factors in the decision making.
Layout of LogiSon sound masking
Sound level tests: open plan areas
These example test results measure sound travelling across an open plan space.
- For both tests, a person was positioned at the same desk.
- Sound pressure measurements were taken at a distance of 12 metres from the desk.
- For the first half of each test, there was no speech.
- For the second half, the person at the desk spoke with a ‘telephone speaking’ voice.