
CASE STUDY | MUNICIPAL
Fannin Central Appraisal District: 9 dB Less Background Noise
Twenty to thirty people share one cubicle hallway at the Fannin Central Appraisal District in Bonham. We put acoustic panels on the ceiling and walls and took 9 dB of background noise and 1.1 seconds of echo out of it.
Cubicle walls block the view. They don't block the sound.

THE SPACE
One Hallway, 20 to
30 People
An open cubicle hallway puts a lot of people in one acoustic space. Every phone call and every conversation travels over the partitions and down the row. At the Fannin Central Appraisal District, 20 to 30 people work along that hallway.
What was getting in the way:
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Voices over the partitions. Cubicle walls are low and soft.
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A bare ceiling and walls. Sound bounces off them and stays in the hallway.
In an open office the fix goes up high, on the ceiling and the walls.
THE RESULT
9 dB Less Background Noise
9 dB background noise reduction | 1.1 sec reverb reduction
Nine dB is just under the 10 dB drop that sounds about half as loud to most people.
TECHNICAL INSIGHTS
FAQ
How much quieter did the hallway get?
Background noise dropped 9 dB and echo dropped 1.1 seconds.
Do acoustic panels work in a cubicle office?
Yes. They absorb sound so it stops bouncing along the hallway. They do not block conversations from reaching the next cubicle.
How many people work in the hallway?
Between 20 and 30.

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