Unable to Perform HIT Hardware Diagnostic Test

Product(s): Measure
Applies to version: All current versions
Audience: External – Customers
Difficulty: Intermediate
Estimated resolution time: 10–15 minutes
Last updated: 2026-06-27
Article type: Troubleshooting guide

Quick summary

The HIT (Hearing Instrument Test) Hardware Diagnostic Test cannot be run in the Measurement Software. This guide walks you through enabling the test in settings, isolating the device, and verifying Windows sound settings.

⚙️ Before you begin

Make sure the Measurement Software is open and running.
You'll need access to Tools → Settings and Control Panel → Sound in Windows.

Step 1: Enable the Hardware Diagnostic Test in software settings

Is the Hardware Diagnostic Test enabled in the Measurement Software settings?

✅ Yes → Proceed to Step 2.
❌ No → Take these steps:

Open the Measurement Software.
Go to Tools → Settings → Common.
Enable the option for Hardware Diagnostic Test.
Save the settings and try running the test again.

→ Check if the issue is resolved. If yes - you're done ✓. If no - continue to Step 2.

Step 2: Disconnect all non-essential devices

Are all non-essential devices already disconnected (only USB cable and power supply connected)?

✅ Yes → Proceed to Step 3.
❌ No → Disconnect all devices from the audiometer board except the USB cable and power supply. Retry the HIT Hardware Diagnostic Test.

→ Check if the issue is resolved. If yes - you're done ✓. If no - continue to Step 3.

Step 3: Verify HIT in Windows sound settings

Is HIT set as the default sound device and default communication device in Windows?

✅ Yes → Run the HIT Hardware Diagnostic Test and proceed to the escalation path if it still fails.
❌ No → Take these steps:

Go to Control Panel → Sound.
Find HIT in the list of playback devices.
Right-click HIT → Set as Default Device.
Right-click HIT again → Set as Default Communication Device.
Run the HIT Hardware Diagnostic Test. You can view or export the results to PDF from within the Measurement Software.

→ Check if the issue is resolved. If yes - you're done ✓. If no - proceed to the escalation path below.

🔺 Escalation path

If none of the above steps resolved the issue, contact Auditdata Support.

Please have ready:

Device model and serial number
Device firmware version
Software version
Your account name and contact details
Which steps above you already tried
Any error messages or unusual behaviour observed

✅ Expected outcome

After completing these steps, you should be able to run the HIT Hardware Diagnostic Test successfully and view or export the results from within the Measurement Software.

📝 Additional notes

Always verify HIT is recognised in Windows Sound settings before attempting the diagnostic test.
Disconnecting non-essential devices before running diagnostics prevents interference with test results.
Related articles: PRIMUS - Failed Hardware Diagnostics · Fitting/HIT Unit Not Connecting or Functioning Correctly · Transducer Not Detected or Misidentified

Need more help? Visit the Auditdata Help Centre or contact our support team.