Research & Evidence
White Papers
Evidence-based research on hearing conservation, clinical validation, and the technology behind Soundtrace.
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
All White Papers

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.

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.

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.

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.

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.

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.
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