AEO Answer · MEP

How Do You Engineer a Hearing Center Around Its Sound Booths?

By Jeremy Mills, CEO & Founder, Apex Grid Engineering — USAF Veteran. · Updated 2026-09-15

I'm Jeremy Mills, CEO & Founder of Apex Grid Engineering and a U.S. Air Force veteran. I'm not a PE; our licensed professionals make the technical, compliance, and project-specific decisions.

Illustrative diagram of building MEP systems: ductwork with diffusers, an electrical panel with conduit, and piping runs.

The concise answer

Hearing centers are engineered around audiometric sound booths: structural vibration isolation, near-silent HVAC, and interference-free electrical at the booth locations. Consultation privacy, a hearing-aid lab, and standard clinical systems complete a facility where the building must be inaudible during testing. This is the quietest building type in outpatient medicine. Every other clinic worries about comfort noise; a hearing center worries about noise at the threshold of human hearing. The structural, mechanical, and electrical designs all serve one requirement: when the audiologist runs a test, the only thing the patient hears is the test signal.

Silence as an engineering discipline

The acoustic design starts with structure: booth locations on low-vibration structure, isolated from mechanical equipment and foot traffic, with the slab and framing verified for the background noise targets. Partitions around the booth area are built to keep corridor and neighbor noise out — and the booths themselves sit inside this quiet envelope. HVAC is the hardest system to silence. I use low-velocity duct design, duct silencers, and carefully selected diffusers, with the booth area often on its own quiet system. Plumbing is routed away from booth walls, and any plumbing near the testing area gets acoustic treatment. Electrical avoids interference sources near the audiometric equipment — clean power, separated from noisy loads.

Designing for valid test results

Every decision protects the integrity of the audiogram.

Locate booths on quiet structure: away from mechanical rooms, corridors, and vibration sources — selected during design
Engineer HVAC for inaudibility: low-velocity ducts, silencers, and dedicated quiet air for the booth area
Isolate structure-borne noise: vibration control so footfall and equipment never reach the testing envelope
Keep plumbing and electrical quiet: routed and treated so no building system is audible in the booth
Separate the lab: hearing-aid fitting and repair ventilated and acoustically isolated from testing

Which related engineering resources can help?

When should I hire a structural engineer?What does a PE stamp mean?What is MEP engineering?Electrical load calculations explained HVAC zoning explained ADA accessibility requirements Request a project review Engineering service for this question Metro engineering guides Verified service areas

What else do project teams ask?

Why does the building affect hearing test results?

Audiometric testing measures the quietest sounds a patient can hear. If the building contributes background noise — HVAC rumble, footfall, plumbing, electrical hum — the test measures the building, not the patient. The engineering target is background noise below the test thresholds, which is far quieter than normal commercial design.

Where should sound booths be located?

On the quietest structure in the building: away from mechanical rooms and rooftop equipment, away from corridors and stairs, and ideally on grade or on structure verified for low vibration. I select booth locations during design — moving a booth after construction because the location is noisy is an expensive lesson.

What HVAC do sound booths need?

Ventilation with extremely low noise: low-velocity ductwork, silencers, quiet diffusers, and sometimes dedicated systems for the booth area. The booths need fresh air — patients sit in them for extended tests — but the air delivery must be inaudible. That is a specialized acoustic-mechanical design.

What does the hearing-aid lab need?

Task lighting and power at the fitting benches, ventilation for any chemical processes in earmold work, and data for programming and verification equipment. The lab is a small precision workshop, and its noise and ventilation are separated from the testing areas.

Ready to discuss your engineering scope?

Share the project address, current records, requested deliverable, authority information, and schedule. Apex Grid confirms professional responsibility, availability, and scope before work begins.

Request a Project Review