Size limits for WAV and AIFF files
From Audacity Development Manual
WAV and AIFF files are limited to a maximum size of 4GB, see the following table for how this translates to time durations
Approximate maximum time durations for WAV and AIFF PCM-encoded files
Maximum sizes for files in time duration (hours:minutes) Sample Format Stereo Mono 16-bit (default) 6h:45m 13h:31m 24-bit 4h:30m 9h:01m 32-bit 3h:22m 6h:45m
|These timings are the theoretical maximum times. You would be well-advised to restrict yourself to slightly lower limits to afford some head-room.