Main question: What is the encoding used for wav files? Unsigned PCM 8-bit, or is it another type?
I accidentally formatted my sd card with data I had yet to download. I was able to recover using a recovery wizard (Recuva), but my files are now corrupted. They have the same file size, but most audio players give an error message about a missing codec. I found a suggestion to change to a RAW format and import into Audacity. Using the defaults this works and I can barely hear recorded sounds but only through a significant amount of white noise. This indicates the the data is there. (I had downloaded about half of the data - 9 days of recording - before some technical glitches, so all was not lost, but it would be nice to get the full dataset back.)
The default file specification in Audacity is:
Encoding: Unsigned 8-bit PCM
Byte order: Little-endian
Start offset: 0 bytes
Sample rate: 44100 Hz
Are these the correct file properties for AudioMoth wav files?