iPad audiometer

An iPad audiometer built for OSHA hearing tests

Run annual audiograms with your own tester, on an iPad audiometer built to ANSI S3.6-2025 specifications. Every result lands in AudiVault for baseline comparison and STS review.

Specification AudiVault iPad audiometer
Standard
Built to ANSI S3.6-2025 specifications
Test
Pure-tone air conduction, tester-controlled
Frequencies
500, 1k, 2k, 3k, 4k, 6k Hz · 8k optional
Threshold search
10 dB down, 5 dB up
Reliability check
1 kHz retest, ±5 dB
Stimulus
Pulsed or continuous · pure or warble
Masking
Narrowband (S3.6 Table 4), white or speech noise
Earphones
TDH-39 · DD450 · ER-3A (HA-2 or HA-1)
Results
Synced to AudiVault for STS review

How a test runs

From license scan to submitted audiogram

  1. Find the employee

    Scan the barcode on a driver's license to pull up the employee, or search by name, employee ID or department.

  2. Check the equipment

    The app reminds the tester when the daily listening check is overdue or the annual calibration has expired.

  3. Instruct and test

    Instructions display in the employee's language. The tester runs the threshold search, marking each tone heard or not heard.

  4. Review and submit

    The tester reviews every frequency before submitting. Results go straight to the employee's record in AudiVault.

Calibration

Calibration records you can hand to an auditor

OSHA Appendix E asks for a functional check before each day of testing and an acoustic calibration every year. The app builds both into the tester's routine.

Daily listening check

A 10-point checklist covering cords, cushions, headband, tone quality, controls, masking and room quiet. Testers are reminded when it's overdue.

Calibration verification

Play reference tones at each frequency, enter Type 1 sound level meter readings, and see pass or fail for level and frequency accuracy. Corrections are applied automatically.

Annual calibration record

As-found and as-left readings for both earphones, with the calibration date carried onto every test record for OSHA 1910.95(m).

Test controls

The controls an occupational tester expects

Your organization sets the test protocol once in AudiVault: step sizes, frequency order, retest rules and instruction languages. Every iPad follows it.

Contralateral masking

Narrowband noise centered on the test frequency, white noise or speech-weighted noise, set in 5 dB steps. Masking levels are saved with each response.

Pulsed, continuous or warble tones

Choose the stimulus that suits the employee. Tones use smooth 20 ms rise and fall times to avoid clicks.

Built-in safeguards

A warning at 100 dB HL and above, timers for long stays on one frequency, a system volume check and an emergency mute.

After the test

The audiometer is half of it

Results from the iPad go straight into AudiVault, where the compliance work happens.

AI analysis

Every audiogram reviewed the moment it's saved

How AI analysis works

Standards & compliance

The standards behind every test

The AudioMeter iPad audiometer is built to ANSI S3.6-2025 audiometer specifications*, and AudiVault supports OSHA 29 CFR 1910.95 hearing conservation programs.

ASA/ANSI S3.6-2025 Specification for Audiometers

Tables 5–7Reference levels for three earphone types
RETSPL values for TDH-39 headphones (NBS 9-A coupler), RadioEar DD450 (IEC 60318-1) and ER-3A insert earphones (HA-2 or HA-1 coupler).
§6.1.3Frequency accuracy
Test tones within 1% of the nominal frequency.
§6.3.1, §7.4Narrowband masking
Masking noise within the Table 4 band limits, calibrated in dB effective masking and capped at 110 dB SPL.
§7.3Hearing level steps
5 dB hearing-level steps with attenuator linearity.
§7.5.3, §7.5.4Tone timing
Tone rise and fall times, and pulsed-tone on and off times.
§9.6.1Annual calibration record
As-found and as-left readings for both earphones, measured with a Type 1 sound level meter (ANSI/ASA S1.4).
Annex G.2Daily biological check
A listening check before each day of testing.

Generated test signals are verified by automated conformance tests.

OSHA 29 CFR 1910.95 · 1904.10 Hearing conservation and recordkeeping

1910.95(g)Baseline and annual audiograms
Baselines and annual tests for every employee in the program, with retest tracking.
1910.95(g) Appendix FAge-corrected standard threshold shift
An average shift of 10 dB or more at 2, 3 and 4 kHz, with Appendix F age correction.
1910.95(g)(8)Employee notification
Written notice tracked against the 21-day deadline.
1910.95(h) Appendix EAudiometer calibration records
Daily functional checks, annual acoustic calibration and exhaustive calibration.
1910.95(m)Audiometric test records
Each test record includes the audiometer's last calibration date.
1904.10OSHA-recordable hearing loss
Standard threshold shifts that are recordable on the OSHA 300 log are flagged.

* Accuracy depends on annual calibration of the iPad with its wired headset by a trained technician. ANSI S3.6 conformance of the complete system is established by that calibration.

AudiVault is for occupational hearing conservation programs. It is not intended for medical diagnosis.

iPad audiometer questions

Does the AudiVault iPad audiometer meet OSHA requirements?

It's built to ANSI S3.6-2025 audiometer specifications, the standard OSHA 1910.95 Appendix C points to, and it tests the required frequencies of 500 through 6000 Hz in each ear. Conformance of the complete system is established by annual calibration of the iPad with its wired headset by a trained technician. Your program also needs a qualified tester, a test room within the Appendix D noise limits, and calibration on the Appendix E schedule.

Is the test automated or run by a tester?

Tester-controlled. A trained tester presents each tone and marks whether the employee heard it. The app handles the threshold search steps (10 dB down after a response, 5 dB up after none) and runs a 1 kHz retest to check reliability.

Do I still need a sound booth?

You need a space where background noise stays under the OSHA Appendix D limits. That can be a booth or an existing quiet room that measures under the limits. The app does not measure room noise, so check the room with a sound level meter.

Which headphones does it work with?

The app includes ANSI S3.6 reference levels for TDH-39 headphones, RadioEar DD450 headphones and ER-3A insert earphones (HA-2 or HA-1 coupler). You calibrate the specific earphones you test with.

How is the iPad audiometer calibrated?

A trained technician plays reference tones from the app and measures them with a Type 1 sound level meter (ANSI/ASA S1.4). The app checks each frequency for level (±3 dB up to 5 kHz, ±5 dB above) and frequency accuracy (within 1%), and keeps an annual calibration record with as-found and as-left readings for both earphones (ANSI S3.6 §9.6.1).

Can I keep using my current audiometer?

Yes. AudiVault imports results from other audiometers by CSV, so you can move to the iPad audiometer on your own schedule while keeping one record for each employee.

See a hearing test run on the iPad

We'll walk through a live test, the calibration workflow and how results reach your STS review.