You can synchronise previous local AIRS recordings, stored in the internal SQLlite database of AIRS and store them to any place you wish to. For that, go into AIRS and select the Sync tab.
Pressing the Sync button will start the synchronisation and AIRS will start creating a file containing all the data recorded since the previous synchronisation. You will see a progress spinner and an increasing size of the temporary synchronisation file. You will also see a Cancel button appear at the bottom of the page, allowing for cancelling the synchronisation process.
After the synchronisation finished, a dialog will appear for selecting your choice of sharing the synchronisation data. Select your preferred storage place, such as Bluetooth/Dropbox/Google Drive, and complete the necessary steps.
After the sharing, the synchronisation finishes, storing the timestamp of synchronisation. You can also manually set the synchronisation date with the Set Sync Date menu option (open the Options menu for that). This option can be useful when your sharing failed or your want to retransmit the data for some other reason.
Scheduled Uploads to Google Drive
Since AIRS V2.7, you can schedule intervals for regularly uploading synchronisation files to your Google Drive account. For this, you need to go into AIRS and select the General Settings in the Config tab. In the synchronisation settings, select the Google Account preference. Your device-local Google account will be shown in a list, from which you should select the one to be used. After the selection, AIRS will attempt to create the AIRS recordings directory in the main path of your Google Drive.
Next, determine the upload frequency in the synchronisation settings. You can either disable uploads altogether or select hourly/daily/weekly schedules. Furthermore, you can instruct AIRS to only upload over WiFi (this is recommended since AIRS recording files can be several hundred kBytes per day!).
After you instructed AIRS to upload regularly, a timer will be set for the next upload. At the time of upload, AIRS will read your database (even if AIRS is running at that moment) and attempt to upload the generated file into the AIRS recordings directory of the selected Google Drive account. In case there is no network available (or no WiFi, if WiFi only upload has been selected), AIRS will attempt to upload after a short while until successfully uploading is possible. A message will be shown in the Android notification window after the upload.
AIRS will store the latest upload as the timestamp for a successful synchronisation. Hence, if you choose to manually synchronise, you will see the time of the latest successful upload (see picture at the top of this page).