NOTE: Even when copying files “in order” using rsync, this still led to some files being played out of order for some reason. We then tested the master on a few media players, just to make sure! This is necessary for simple audio players that only play files in the order they are listed in the FAT filesystem’s File Allocation Table, which is more or less the order that the files are written to the disk. This was less confusing that having all files at the root level and having to name them all with overly-descriptive file names.įor proper file ordering in Step 5, we used the command fatsort (install with sudo apt install fatsort) to ensure that the disk order of the files matched the desired playback order. Most come already like this, but we reformatted ours anyway to make use of some unused space, as well as ensure that we were starting from a completely clean slate.įor organizing the files in Step 4, we found that folders can be used to organize contents as seen in a file manager, while the playback device basically ignores them. The master device in Step 3 needs to have a single FAT partition. Ensure that the “disk order” of the files matches the “sort order” seen in a file manager.Organize files as appropriate so that they are ordered in the desired playback order.Copy audio files to a master device (SD/USB).Get a supply of SD cards/USB drives (~$7 per 4-GB card here).Get a multi-port USB hub and adapters (well under $100). Here are the steps we’ve taken to accomplish this: But for our smallish quantity, we decided to try using a USB hub.) I’d be happy to hear feedback if others have found other ways to do this, but I’m sharing our experience to show that there’s at least one way to do this. (If we were producing a lot more than that, then would consider using an SD card duplicator. I’ve recently started helping a partner create a few hundred SD cards for distributing audio publications.
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