Nagra Seven Operating Instructions Manual page 39

Possible automatic file naming selections are:
MachNameXXX.wav
MachNameHHMMSS_XXX.wav
MachNameYYYYMMDDHHMMSS.wav
Folder_XXX.wav
FolderHHMMSS_XXX.wav
FolderYYYYMMDDHHMMSS_XXX.wav
Folder_Scene_Take_XXX.wav
Scene_Take_XXX.wav
YYMMDD_HHMMSS_XXX.wav
Max file size
The Nagra Seven records audio using the standard FAT 32 (File Allocation Table) file format that allows the
audio files to be read by either MAC or PC. The FAT system limits any file to a maximum size of 4 GB although
many computer programs will not accept audio files larger than 2 GB. The recorder will automatically, and
seamlessly create a new file (or index) up to a maximum of 999, when the file size reaches 2GB during any
recording.
Recording at 2 channels of 24 bits per sample audio at sampling frequency of 192 kHz represents
approximately 1 GB in 15.5 minutes. This means that a new file will be created about every 31 minutes. If a
long duration recording is to be made, then it is strongly recommended to use the monophonic file mode, and
this will allow each track to have its own file each of which can go up to 2 GB. This calculates approximately to
1h 02 minutes per track of mono for 2 GB of memory space.
Chapter III September 2014
38