Measure does not recognize transducer - 'Sound Booth Cable Connection' message

Product(s): Measure
Applies to version: All current versions
Audience: External – Customers
Difficulty: Intermediate
Estimated resolution time: 15–25 minutes
Last updated: 2026-06-27
Article type: Troubleshooting guide

Quick summary

Measure displays a "Sound Booth Cable Connection" error and does not recognise the transducer. This is typically caused by outdated audiometer firmware that is incompatible with newer transducer requirements. This guide walks you through firmware and software updates, and physical connection checks.

⚙️ Before you begin

Make sure the Fitting Unit is connected to the PC and Measure is open.
Check your current firmware version - go to Tools → About or Tools → Update Firmware to see the version number.

Step 1: Verify the firmware version

Is the Fitting Unit firmware version 4.1.1.0 0330 or higher?

✅ Yes → Proceed to Step 2.
❌ No → Update the firmware:

Start Measure with the Fitting Unit connected to the PC.
Go to Tools → Update Firmware.
Follow the on-screen instructions to update to the latest firmware version.

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

Step 2: Update Measure to version 6.5.0 or higher

Is Measure version 6.5.0 or higher installed?

✅ Yes → Proceed to Step 3.
❌ No → Take these steps:

Download the latest Measure version (6.5.0 or higher) from the official Auditdata source.
Install the software and follow the on-screen prompts - the installer will also update the audiometer firmware automatically.
Restart Measure after installation.

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

Step 3: Reconnect the transducer

Does reconnecting the transducer clear the error?

✅ Yes → You're done ✓.
❌ No → Restart Measure, then reconnect the transducer and check again.

→ Check if the issue is resolved. If yes - you're done ✓. If no - continue to Step 4.

Step 4: Check all cable connections and transducer compatibility

Are all cables securely connected and the transducer compatible with the current Measure version?

✅ Yes → Proceed to the escalation path below.
❌ No → Take these steps:

Make sure all cables are firmly connected at both ends.
Try a different USB port on the PC.
Verify that the transducer is listed as compatible with your current Measure software version - refer to the official compatibility list or contact Auditdata Support.

→ 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:

Current Measure software version
Firmware version before and after update
Transducer model and serial number
Your account name and contact details
Which steps above you already tried
Exact error messages shown

✅ Expected outcome

After completing these steps, the transducer should be recognized by Measure, the "Sound Booth Cable Connection" error should no longer appear, and full audiometer and transducer functionality should be restored.

📝 Additional notes

Keeping both Measure software and board firmware up to date is the primary prevention for this error.
Related articles: Transducer Not Detected or Misidentified · Measure - High-Frequency Transducer Not Responding · Hardware error displayed in Measure

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