Pre-release: OnTheAir Node 4 (with OnTheAir Live 4 and OnTheAir Manager 4)

Download links

OnTheAir Node
Version 4.0b32 (4 October 2021)
OnTheAir Manager
Version 4.0b7 (3 September 2021)
OnTheAir Live
Version 4.0b4 (21 April 2021)


Warnings and Important modifications

  • As OnTheAir Node is now a "regular" application, and is not started from a system preference pane anymore. To start it use the aliases that are installed in "/Applications/OnTheAir Node/"
  • Because what we used previously has been deprecated for security measures by Apple, there is no "auto-start" option anymore. To automatically start the Node with your computer, you should add it to the login items. Currently there is no automatic restart of OnTheAir Node in case of an issue. 
  • The playback preferences are different than the one of OnTheAir Node 3. So if you switch from one to the other, make sure to change them in both versions.


Release Notes

OnTheAir Node

  • Full Compatibility with macOS Big Sur (11.0).
  • Universal application for better performances on Apple M1 Silicon computers. Make sure to read the following article for more info on compatibility with M1 computers.
  • Full compatibility of NDI with Apple Silicon computers. 
  • NEW: OnTheAir Node is now a "regular" application. There is no more System Preference Pane. Start it from the Applications folder.
  • NEW: Secondary Audio Output: Additionally to the video output on the selected video device, you can now also output to another available audio output on your Mac. Works with CoreAudio, so supports the audio devices that are available for macOS (including Dante or MADI).
  • NEW: Support for OP47 Subtiltling. (Requires the CC option). It is supported either in an MXF file with OP47, or using SRT or .STL sidecar files.
  • NEW: Support for .SRT sidecars files with Closed Captioning. (Requires the CC option)
  • NEW: Support for SCTE triggers. (Requires the CC option)
  • NEW: Added the ability to perform basic playback controls from the Node user interface, when Node is running a schedule (Pause/resume/stop/resync schedule)
  • (A few more features will be added before the release)


OnTheAir Live and OnTheAir Manager



  • 4K decoding performances improvement





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