I recorded almost 11 hours. The resultant file is 13.5GB long, which matches 11 hours of stereo data in float 32-bits WAV format.
When I read back the file into Audacity (or Audition, for that matter, or Groove Music), I only see 48 minutes or so of data. Same thing in VLC media player. This is because the wav format has a 4GB limitation.
Audacity should at the very least issue a warning and suggest another file format to save the recording in. That, or save as W64 or RF64. (See https://en.wikipedia.org/wiki/WAV#RIFF_WAVE)
This was discussed recently on the developer’s mailing list. I think it’s agreed that “silently failing” is not helpful.
It does not appear to be currently logged on the Audacity bug tracker, so I’ll add it.
Thanks for the feedback.
I don’t know if this works on Windows, but I’ve just tested and it works on Linux.
The audio may be recovered from WAV files > 4GB using “Import Raw Data” (https://manual.audacityteam.org/man/file_menu_import.html#raw_data). This will add a little garbage at the start of the file (the file headers), which may be trimmed off after importing. You will probably need to manually set the “Encoding” for Import Raw.
