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Dirac Live Bass ControlDirac Live 3.9.7 Software Changelog
Dirac Live Bass Control

Dirac Live Bass Control

Dirac Live 3.9.7 Software Changelog


  • Faster filter export on most devices

  • Users experiencing recurring imprecise measurements on Windows PCs now have the possibility to opt-in for using the microphones in Exclusive Mode by adding a Windows Environment Variable:

  1. Right-click on This PC in Windows Explorer and select “Properties”

  2. Click the “Advanced system settings” link

  3. Open the “Advanced” tab

  4. Click the “Environment Variables…” button

  5. Click the “New…” button under “User variables for <username>”

  6. Enter the following:
    *Variable name:
    *Variable value:

  7. Click “OK”

  8. Restart the Dirac Live application

  9. Verify that it is possible to complete a calibration.

Disable Exclusive Mode by either deleting the environment variable or by setting its value to “ON”


  • Fixed the known problem where some NAD and other devices didn’t populate the subwoofer filter unless using version 3.4.4 or older.

  • Fixed the known problem where some NAD devices got substantially louder sound with Dirac ON than with Dirac OFF.

  • Fixed a problem when a general and misleading error message was displayed when trying to enable Dirac filters while being in measurement mode.

  • Fixed a problem that blocked the app window from being moved while being busy with background operations.

  • Fixed a UI glitch that exposed Windows-style title-bar buttons also in MacOS systems.

  • Fixed an issue that could cause the app to stall after a failed login attempt.

Known problems

  • Filter export to devices from Onkyo/Integra/Pioneer take longer time than usual. Please be patient and wait for it – it will eventually complete.

  • Exclusive mode measurements appear with lower level in the Measurement UI. But they are useful anyway – no need to crank up the volume to unsafe levels.

  • Older Windows 10 PCs may have problems with the app not displaying properly.


  1. Press the Windows button or the search field, type "env" and press Enter

  2. Click the “Environment Variables…” button

  3. Click the “New…” button under “User variables for <user>“

  4. Enter the following:
    Variable value: 1

  5. Click “OK".

  6. Restart the Dirac Live application.



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