Device only records audible sounds
Hi, several people in our bat group have similar issues with Audiomoth recorders - they only record audible sounds, no bats, with below settings.
The Audiomoth devices are older types, who have worked well during a few years. Versions and serial numbers, see below
Recordings are made but these are either noise or audible sounds, eg of birds at dusk and dawn. No bats.
Device 1 : 10231425, version 1.1.0
Device 2 : 10231873, version 1.1.0
Device 3 : 10411822, version 1.2.0
Device 4 : 10411822, version 1.2.0
Could you please advise?
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Hi Alex, I tested with a bunch of keys shaking close to the Audiomoth. Now I can see some sounds both audible range and ultrasonic. The keys were at 10 cm from the microphone and it was a loud noise. Now I can see sounds but don't you expect louder sounds at such a close range? Maybe something is wrong with the microphone?