Hi, The file names are the time that the recording was made in UTC presented as a 32-bit hexadecimal UNIX timestamp (which is the number of seconds since 00:00:00 01/01/1970). This is because the simple filesystem that the AudioMoth supports only allows 8 character filenames. It is very easy to convert these to regular timestamps in software or to double check online - https://www.epochconverter.com/hex.
The full timestamp in available in human readable form inside the comment field of the WAV file. On a Mac this is real automatically and is visible if you do 'Get Info' on the file.
We have an updated version of the firmware coming out in a couple of weeks that fixes the restriction on the filename length so that we can use the full timestamp as the file name (as above). The new format is YYYYMMDD_HHMMSS.WAV which is readable in lots of standard acoustic analysis software. We also support local time zones in the firmware and configuration app which makes it easier to keep track of when recordings were made (e.g. the recording above used the UTC +1 timezone - UK summer time).
Hi, The file names are the time that the recording was made in UTC presented as a 32-bit hexadecimal UNIX timestamp (which is the number of seconds since 00:00:00 01/01/1970). This is because the simple filesystem that the AudioMoth supports only allows 8 character filenames. It is very easy to convert these to regular timestamps in software or to double check online - https://www.epochconverter.com/hex.
The full timestamp in available in human readable form inside the comment field of the WAV file. On a Mac this is real automatically and is visible if you do 'Get Info' on the file.
We have an updated version of the firmware coming out in a couple of weeks that fixes the restriction on the filename length so that we can use the full timestamp as the file name (as above). The new format is YYYYMMDD_HHMMSS.WAV which is readable in lots of standard acoustic analysis software. We also support local time zones in the firmware and configuration app which makes it easier to keep track of when recordings were made (e.g. the recording above used the UTC +1 timezone - UK summer time).