Lencore SystemThird Lake Partners — Tampa, FL
Full-building Lencore sound masking installed mid-renovation, restoring privacy across an open, design-forward office without touching the historic interior finishes.
Read the case study →Sound Masking Calculator: Coverage Planningfor Offices & Open Spaces
Enter your space’s size, ceiling, and office layout to estimate how many sound masking speakers you need — and which system fits.
What Is Sound Masking?
Sound masking is the strategic addition of a subtle background sound, engineered to match the frequency of human speech. It doesn’t eliminate noise; it makes speech less intelligible, which makes conversations far less distracting. Unlike flat, intrusive white noise, sound masking is spectrally shaped and introduced gently through ceiling-mounted speakers, so it blends into the room without being noticed.
What It DoesAdds low-level, speech-shaped background sound that covers distracting conversations.
Where It’s UsedOffices, healthcare, banks, law firms, libraries, and secure facilities.
The ResultBetter speech privacy, fewer distractions, and less mental fatigue.
Typical Sound Masking Layouts
Speaker layout and density depend on ceiling height, ceiling type, and how the space is used. Most open offices get a uniform square grid of ceiling speakers, while enclosed rooms and large floor plates need their own approach.
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Open OfficesA uniform square grid across the ceiling for even coverage over workstations and collaboration zones.2
Private Offices & RoomsAt least two speakers per enclosed office so the sound can’t be traced to a single spot.3
Multi-Zone SystemsLarge spaces split into separate zones so volume and tone can be tuned area by area.Sound Masking Coverage by Use Type
The benefits of sound masking vary by use, and the layout should be tailored to match. Here’s what it solves in the three settings we see most.
CorporateFocus
Corporate Offices
Cuts distraction across open benching and cubicles so teams can concentrate.
HealthcareHIPAA
Healthcare Settings
Supports patient speech privacy in exam rooms, registration, and nurse stations.
Financial & LegalConfidential
Financial & Legal
Keeps sensitive conversations from carrying into hallways and adjoining offices.
How Sound Masking Works
Small speakers in the ceiling or plenum are fed from a central controller that handles power, volume, and tone for each zone. After installation, the system is tuned with sound level meters so coverage is even and comfortable.
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SpeakersSmall speakers above the tile, flush in a hard ceiling, or hung from an open deck distribute the masking sound.2
Control ModulesA central processor manages output, zoning, and frequency shaping across the system.3
CommissioningEach zone is balanced with SPL meters and spectrum analyzers for a consistent, unobtrusive level.Key Design Factors
Ceiling type and height set how far apart speakers can go. Room size and shape drive the total count and the number of zones, and existing HVAC noise affects how loud the masking should run. These are typical spacings from published layout guidance — the same numbers the calculator uses.
Plenum SpeakersACT (Acoustic Ceiling Tile)
Typical spacing~14′ on center
Coverage per speaker~200 sq ft
Tangent SpeakersDrywall / Hard Lid
Ceilings up to ~10½′~10′ · 100 sq ft
Taller ceilings~12′ · 144 sq ft
Pendant SpeakersOpen Ceiling / Exposed Deck
Deck up to ~15′~12′ · 150 sq ft
Deck 16′ and up~16′ · 260 sq ft
Sound Masking & Building Codes
While not required by every code, sound masking is common in healthcare design standards and office specs. Major tech, legal, and banking clients often require it in their own internal standards.
HIPAAHelps obscure conversations in exam areas, registration desks, and nurse stations.
LEED & WELLContributes to acoustic comfort criteria in high-performance buildings.
Owner StandardsIncreasingly written into owner performance criteria and corporate design guides.
Case Studies: Sound Masking in Action
Sound masking projects across corporate, healthcare, government, and legal spaces — from single counseling suites to 380,000 SF campuses.
Lencore System
380,000 SFNova Medical — Davie, FL
HIPAA-aligned sound masking across a 380,000 SF medical education complex, engineered for speech privacy and supporting the building’s LEED Silver certification.
Read the case study →
100,000+ SFNOAA Aircraft Operations Center
Networked sound masking across a 100,000+ SF LEED-certified facility, restoring speech privacy and focus in a hybrid open and closed-office layout.
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1,000+ StaffDuke Energy — St. Petersburg, FL
A sound masking replacement across three renovated headquarters floors, restoring privacy and comfort for more than 1,000 staff during an active renovation.
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Interview RoomsOrange County Sheriff’s Office
Sound masking plus targeted ceiling tile replacement in interrogation and soft rooms, stopping speech from bleeding into adjacent corridors.
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Therapy PrivacyCounseling Center — Tarpon Springs, FL
Above-ceiling masking tuned around a pitched plenum that varied from 3 to 12 feet, stopping therapy conversations from leaking between rooms.
Read the case study →FAQs: Sound Masking Design & Coverage Estimates
Enter your space’s length, width, and ceiling height, then pick the ceiling type and office layout. The calculator applies published coverage guidance for that ceiling type and height to estimate the speaker count, zones, and the system size that fits.
This calculator is ideal for early-phase planning. For a precise speaker layout and zoning, especially in complex or multi-use spaces, professional design and acoustic commissioning are recommended.
Installed systems typically range from $1.50 to $3.00 per square foot. Costs depend on brand, speaker density, zoning complexity, and site-specific wiring requirements.
Sound masking is spectrally tuned to the frequency of human speech, making it more effective and less annoying than white noise. It blends into the background instead of drawing attention.
Yes. Pendant-mounted and direct-fired masking speakers are designed for open plenum spaces, including exposed structure and non-acoustic ceiling designs.