Research & Evidence

White Papers

Evidence-based research on hearing conservation, clinical validation, and the technology behind Soundtrace.

FeaturedClinical Validation

Field Comparison Study: Agreement Between Soundtrace Audiograms and Prior Vendor Audiograms

5,961 employees. 116 employers. 225+ devices. 280+ test administrators.

This study examined how audiograms performed using the Soundtrace system compared to historical audiograms from external occupational hearing testing providers. With 4,988 valid matched comparisons across 116 employers, Soundtrace results showed ~97% agreement within ±10 dB and a mean PTA difference of just –2.42 dB — fully within published clinical benchmarks.

5,961

Employees

116

Employers

225+

Devices

~97%

±10 dB Agreement

Key Findings

4,988 valid matched comparisons after 5% outlier removal
Mean PTA difference of –2.42 dB (Soundtrace vs. prior vendor)
~76% within ±5 dB, ~97% within ±10 dB
Results fall fully within published audiology benchmark ranges

All White Papers

The Hidden Cost of Untreated Hearing Loss: Dementia, Heart Disease, and Beyond
Health Research15 min read

The Hidden Cost of Untreated Hearing Loss: Dementia, Heart Disease, and Beyond

Why OSHA compliance is the floor - not the ceiling.

A comprehensive review of peer-reviewed research linking untreated occupational hearing loss to cognitive decline, cardiovascular disease, workplace injuries, and depression. Makes the case for preventive hearing conservation that goes beyond minimum compliance.

5× higher dementia risk with untreated hearing loss
48% increased cardiovascular disease risk
3× more workplace injuries among hearing-impaired workers
Replacing the Mobile Van: ROI Analysis of In-House Audiometric Testing
Operations10 min read

Replacing the Mobile Van: ROI Analysis of In-House Audiometric Testing

How companies are cutting costs and improving compliance with year-round testing.

A detailed cost comparison of traditional mobile van audiometric testing vs. Soundtrace's in-house model. Includes case study data from manufacturing, construction, and logistics companies showing 40-60% cost reductions and dramatically improved compliance rates.

40–60% average reduction in total program cost
Year-round testing eliminates scheduling bottlenecks
Case studies from 3 major industry verticals
Unprotected by Design: The Hidden Data Security Risk Inside Occupational Health Programs
Data Security14 min read

Unprotected by Design: The Hidden Data Security Risk Inside Occupational Health Programs

Why audiometric records held without HIPAA BAAs or SOC 2 expose employers to liability.

41% of 2023 healthcare data breaches originated from third-party vendors. This paper examines why employers who never asked their audiometric testing vendor about data security are already exposed - regulatory frameworks, breach statistics, vendor due diligence checklists, and what a secure cloud-native platform actually looks like.

41% of health data breaches caused by third-party vendors
$7.42M average healthcare data breach cost (IBM, 2025)
337% increase in business associate breaches since 2018
35 Days, Not 18 Months: A Framework for HCP Implementation Timelines
Operations13 min read

35 Days, Not 18 Months: A Framework for HCP Implementation Timelines

A framework for EHS leaders evaluating platform change in occupational hearing conservation.

Why most enterprise software deployments take six to nine months — and why hearing conservation platforms should not. This paper presents a five-variable framework for estimating implementation timelines, identifies the architectural decisions that compress them, and documents three representative Soundtrace deployment profiles, including a 1,500-employee enterprise with 26 years of fragmented historical data across four prior vendors completed in 35 days.

Standish Group: only ~31% of IT projects deliver on time, on budget, in full
Panorama Consulting: 47% of 2023 ERP rollouts ran over budget
Five-variable framework for estimating realistic platform timelines
The Silent Liability: How Occupational Hearing Loss Claims Are Quietly Compounding Your Workers' Compensation Exposure
Risk & Liability12 min read

The Silent Liability: How Occupational Hearing Loss Claims Are Quietly Compounding Your Workers' Compensation Exposure

A financial risk analysis for risk managers, CFOs, and occupational health directors.

Occupational hearing loss is the most prevalent work-related condition in the U.S., yet it remains the least visible workers' comp line item. Claims surface 10–15 years after exposure — often after records have been destroyed. This paper quantifies the financial exposure building silently inside noise-exposed workforces and presents a longitudinal audiometric data strategy for liability containment.

$1.1B+ annual workers' comp hearing loss costs (NIOSH)
$23,000 average claim settlement per affected worker
68% of claims lack documentation to contest at settlement
Above the OSHA Baseline: Five OSHA-Allowed Methods That Make a Hearing Conservation Program Defensible Under Inspection
Regulatory Compliance12 min read

Above the OSHA Baseline: Five OSHA-Allowed Methods That Make a Hearing Conservation Program Defensible Under Inspection

Why minimum-compliance interpretations of 29 CFR 1910.95 leave EHS leaders exposed - and what a stronger protocol looks like.

When an anonymous complaint lands at a state OSHA plan operating in alignment with 29 CFR 1910.95, the conventional, minimum-compliance interpretation of the standard is what most programs lean on. This paper argues that several little-known, OSHA-sanctioned methods - microprocessor technician pathway, ANSI S3.1-1999 (R2018) MPANLs in lieu of Appendix D Table D-1, continuous in-test ambient monitoring with auto-pause, annual exhaustive calibration, and platform-enforced supervision - form a measurably stronger protocol that holds up under regulator scrutiny.

5 OSHA-allowed methods that exceed the conventional baseline
OSHA Letter of Interpretation 10/11/2022: ANSI S3.1 MPANLs in lieu of Appendix D Table D-1
Annual exhaustive calibration vs. the 1910.95(h)(5)(iii) two-year floor

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