This new Acoustic Vario feature is one of many provided by the AIR³ XCT addon. The app can be used with any Android device, but the new Acoustic Vario feature is only available on AIR³ devices 7.3 or above (it is recommended that you upgrade to Android 13 if you have Android 10 or 11. You can contact us for more information how to do it).
The first step is to download and install the latest version of the AIR³ XCT add-on. This can be done easily through the latest version of the AIR³ Upgrader.
During installation, you will be asked if you want to enable the acoustic variometer feature. Doing so will automatically set up everything needed to use this new feature within the AIR³ XCT add-on. Make sure you have the latest version of XCTrack (version 0.9.12.11.3 or later is required to communicate with the AIR³ XCT add-on). XCTrack will communicate with the add-on when you take off and land to start or stop the acoustic variometer.
Remember to turn off the acoustic vario in XCTrack to avoid playing two different sounds at the same time.
Finally, in the settings of AIR³ Manager, make sure to start the AIR³ XCT add-on on boot, so that AIR³ XCT Addon will always start when you start AIR³ for your next flight.
Note that you can start or stop the acoustic variometer at any time by tapping on the AIR³ XCT add-on notification.
English 
Français