See original message here: https://lingualibre.org/wiki/LinguaLibre:Chat_room#Audio_recording_has_.22clicks.22_half_the_time
A copy below:
I've had friends record German and Romanian lists. They're using separate hardware, and have recorded thousands of words before, so I know their hardware is fine. The recordings they've done today suffer from loud clicks on half the recordings, so there seems to be a problem with the recording studio. I clearly have no idea what the problem is or how to fix it, but I hope someone else will!
Here are examples:
This problem is confirmed by another contributor.