Hi, in all my recordings there's a "clicking" noise (26-28kHz). This is an issue that I had before with some recordings but now the noise is louder and it is present in all recordings. The batteries are Energizer AA (new) and the SD card is the SanDisk Extreme 32GB. Is there Anything I can do to make the "clicking" noise disappear?
Hi, This is one of the challenges of having the MEMS microphone on the same board as the SD card - mechanical noise from the SD card writing generated by expanding and contracting capacitors gets propagated through the board and within a case. This self noise is very much reduced in version 1.2 of the hardware. Some makes of SD are worse than others. We generally use SanDisk Extreme cards. Alex
Hello, I have two AM (1.1.0, Firmware 1.5.0) and both in any case have annoying clicking noise (also in a plastic bag and with different batteries clicking noise is present). Without a case, they work ok. So my thoughts are that this noise comes from AM itself and in a closed environment sound gets trapped and recorded. Without case this faint clicking noise 'fly away' and it is not picked up by AM mic.
Also, this clicking noise is louder at nights, but when the environment around is loud, then these clicks almost go away completely.
Have we found any resolution to these odd ticking noises yet ? I have a similar problem with the two new AudioMoths with the new cases. One gives a double tick at about 0.1 sec prf with a slightly stronger syncronised pulse at about 0.5 sec the other gives a single pulse at 0.1 sec ? These are soft admittedly. but very annoying when trying to record/analyse Orthoptera calls when they become obtrusive played back at at 10 X time expansion.