Noise Monitoring
Noise Changes Daily. Your Data Should Too.
A one-day noise survey doesn't tell you what happened yesterday, last week, or next month. Continuous monitoring builds the exposure record that actually protects your workers and your company - not just checks the compliance box.
24/7
continuous monitoring
Auto-Alert
threshold exceeded
Independent 1910.95 Audit
Third-Party Reviewed
FDA Registered
Class II Medical Device
SOC 2 Type II
AICPA Certified
HIPAA Compliant
Powered by Vanta
Made in USA
Engineered & Built
What It Does
Soundtrace's noise monitoring module centralizes dosimetry and area monitoring records for every employee and worksite. Exposure data is automatically compared against OSHA's 85 dBA action level and 90 dBA PEL, with flags triggered when thresholds are exceeded — so your industrial hygiene team knows exactly where to focus and your program documentation is always complete.
Calibrated Dosimeters.
Always Connected.
Personal and area noise dosimeters with Class II calibrated microphones. Deploy them across your facility and data flows automatically to your compliance platform - no manual downloads, no data entry.
Noise Dosimeter
Personal & area monitoring with Class II calibrated microphone
Personal Dosimetry
Clip-on dosimeters track individual worker exposure throughout their shift. TWA, dose percentage, and peak levels are calculated continuously and logged automatically.
Area Monitoring
Stationary monitors placed in key zones measure ambient noise levels 24/7. Map noise profiles across your entire facility and track changes over time.
LTE & USB Connectivity
Data transmits automatically via built-in LTE cellular or syncs via USB. No WiFi infrastructure required. No manual data downloads. Readings flow directly to your cloud dashboard.
Live Monitoring Preview
Real-Time Facility Noise Map
See noise levels across every zone - updated continuously, not annually.
Press Room
Current noise level
PEL Exceeded
Why It Matters
A One-Day Survey Is Not a Noise Program
Most companies run a one-day noise survey and make the decision whether or not a program is needed. That's one piece of the OSHA puzzle - but it's not long-term protection for the company or employee health. Noise changes daily. Production schedules shift. Equipment degrades. A single measurement can't capture any of that.
Noise Changes Daily - Your Data Should Too
A one-day survey captures a snapshot. But noise levels vary by shift, by season, by equipment condition, by production schedule. Workers at 78 dBA today might be at 87 dBA tomorrow when a different line runs. Without continuous data, you're making enrollment decisions based on a single roll of the dice - and scoping workers out of your program who may actually need protection.
The 75–85 dBA Danger Zone
Workers between 75 and 85 dBA are the ones most at risk of falling through the cracks. Below the OSHA action level, so they're scoped out of your hearing conservation program - but noise is still hazardous, still causing hearing damage over time, and you have zero record of their exposure. One-day surveys routinely miss these workers. Continuous monitoring catches them.
Larger Data Sets, Better Audiometric Insights
Many companies continuously monitor not just for compliance, but to build larger noise exposure data sets that directly support audiometric testing trends. When you can overlay noise data by job area across months or years, you can see whether a shift in hearing thresholds correlates to a change in exposure - before it becomes a recordable.
Hardware That Just Works
Cellular, WiFi, and Bluetooth-connected monitoring devices that stream data directly to your dashboard. No manual downloads. No USB cables. No data entry. Deploy sensors across your facility and data flows automatically to your compliance platform with full calibration tracking.
How It Works
From Deployment to Compliance in Minutes
Connected devices, continuous measurement, automated alerts, and instant reporting. No clipboards required.
Deploy Devices
One-time setup
Place area monitors & dosimeters - connect via LTE, WiFi, or Bluetooth
Place area monitors in key zones and issue personal dosimeters to representative employees. Devices connect via LTE, WiFi, or Bluetooth - no infrastructure changes needed.Continuous Measurement
24/7 ongoing
Real-time noise levels & TWA dose calculated automatically every shift
Devices continuously measure and transmit noise levels throughout the shift. Your workers' total daily exposure is calculated in real time - no manual calculations needed.Automated Alerts
Real-time
Instant notifications when action level, PEL, or custom thresholds exceeded
When noise levels exceed configurable thresholds (action level, PEL, or custom), alerts fire immediately to supervisors, safety managers, and affected employees.Compliance Reports
On demand
One-click OSHA reports - exposure, calibration, and methodology documented
Generate OSHA-compliant noise monitoring reports with one click. Employee exposure determinations, area surveys, calibration records, and monitoring methodology - all documented automatically.The Hidden Risk
The 75–85 dBA Danger Zone
Workers in this range are exposed to noise that causes real hearing damage - but they fall below OSHA's 85 dBA action level, so they're scoped out of your hearing conservation program entirely. No audiograms. No monitoring. No protection. No record.
Hidden Danger Zone - Workers at Risk With No Record
These employees are exposed to hazardous noise daily, but because they fall below the 85 dBA action level, OSHA doesn't require monitoring. That means no audiograms, no hearing protection, and no exposure documentation. If one of these workers develops hearing loss, you have zero data to show their history. Continuous monitoring is the only way to catch it.
Sound Level
80 dBA
Busy Production Line
Risk Level
Hidden danger
What This Means
Still below 85 dBA action level - no OSHA mandate, but real hearing damage accumulating. No audiograms, no monitoring, no documentation.
OSHA Requirements
Noise Monitoring Compliance Checklist
Every noise monitoring record OSHA requires under 29 CFR 1910.95(d) - automatically captured by Soundtrace.
Soundtrace automatically handles all 7 monitoring requirements
Continuous data - zero manual logging
Common Questions
Noise Monitoring FAQ
Everything you need to know about OSHA noise monitoring requirements, TWA calculations, and connected monitoring hardware.
Showing 11 results
When is noise monitoring required under OSHA?
What's the difference between the action level and the PEL?
How often do we need to re-monitor?
What is TWA and how is it calculated?
What's the difference between OSHA and NIOSH noise exposure criteria?
Do we need area monitoring, personal dosimetry, or both?
What monitoring devices does Soundtrace support?
How accurate are the noise measurements?
Can we set custom alert thresholds?
How does noise data integrate with audiometric testing?
What happens to the data if we lose connectivity?
The Bigger Picture
This Isn't Just About Passing an Audit
Continuous noise monitoring is about building the long-term exposure record that protects your employees' hearing health and protects your company from claims you can't defend against because the data doesn't exist.
For Your Employees
Workers in the 75–85 dBA range are accumulating exposure with zero documentation. If they develop hearing loss in 10 years, there's no record connecting it to their work environment. Continuous monitoring creates the longitudinal data set that supports early intervention - and gives workers the hearing protection they actually need, even when OSHA doesn't require it.
For Your Company
When a hearing loss claim comes in, the first question is: "What was this worker's exposure history?" If you relied on a one-day survey from three years ago, that's your answer - and it's not a defensible one. Continuous data gives you a documented exposure record by worker, by zone, by shift, across years. That's the difference between a successful defense and an expensive settlement.
Related Resources
Continue exploring the Soundtrace platform
Audiometric Testing
Pair noise data with annual hearing tests for a complete hearing conservation program.
Learn moreHPD Fit Testing
Verify that hearing protection actually works in your noise environment.
Learn moreRecordkeeping
Automated compliance records for noise surveys, dosimetry, and exposure history.
Learn moreCase Studies
See how organizations built defensible noise programs with Soundtrace.
Learn moreIndustry Solutions
Portable noise monitoring for field crews, construction, and mining operations.
Learn moreBlog
Noise exposure research, dosimetry best practices, and OSHA compliance guides.
Learn moreReady to Build a Real Noise Program?
See how continuous noise monitoring replaces single-day surveys with daily exposure data that protects your workers' hearing and your company's liability position.