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Recorded files empty after one minute (swith to 1 January 1980)

Hi,

I am doing fieldwork with a few AudioMoths but unfortunately there is an issue with my recordings. It seems that after a few minutes or sometimes even after one minute the recording stops and the files show that the time switched to 1 January 1980.

I have just changed the batteries, I get four flashes so that shouldn’t be the issue. The sd cards are empty so that can’t be it either. Any ideas?

Thanks!

Koen

2 comments

2 Comments

Alex Rogers

Mar 26, 2022

Make sure that you reformat the SD cards between deployments rather than just deleting the files as often deleting them just moves them to a hidden folder rather than actually removing them from the file allocation table. I assume that the files, other than the first one, are zero size? If so, I think reformatting will fix the issue.

The Team

Mar 24, 2022

Are the files the correct size and readable? If the file sizes are not readable, could you share a screenshot or copy the WAV comments on WAV file 2022034_094500.WAV? In the metadata AudioMoth will state a reason for files ending early.