I did it. Thanks for your help Alex :-)

• AudioMoth USB Microphone firmware, Default switch, USB connection, No SD : the Capture option is OK. A WAV file is saved • AudioMoth USB Microphone firmware, Default switch, USB connection, With SD : green LED flashing fast, nothing recorded, no CONFIG.TXT available • Test with Firmware 190, battery, SanDisk Extreme 64Gb/exFAT, Default swicth => same result (2 LEDs flashing 5x, no CONFIG.TXT

µSD In and out and DEFAULT recording error

NO. Whith the USB cable and no battery, the problem is the same (5 long flashes, short flashes, nothing recorded on the µSD) Also : NO SIGNAL SHOWN by the Live App (touching gently the board on my desk as I did successfuly with the HydroMoth)

The µSD goes in/out normally with a little click as on your video. BUT the first time I inserted the SD, I felt that the contacts into the SD socket were not parallel to the board plate.

When switching to DEFAULT with the USB cable, no battery and the µSD, the 2 LEDS are falshing the same way. AS ON YOUR VIDEO. When switching to DEFAULT with the USB cable, no battery and no µSD, the 2 LEDS are falshing the same way. It is 5 long flashes, then short flashes (2 LEDs at the same time) Nothing recorded, the µSD remains as after formatting

When I am using the AudioMoth Live App, nothing is visible into the blue window, as it was when I was trying the HydroMoth, neither with the built-in micro neither with an external micro.

Hi Alex, I did not received any answer to my emails to Andy (25/11) and you (27/11). They maybe fall in your spams ? Can I expect an answer, please ? Best regards Pierre

Hi Alex, I ran the test : the LED is flashing red, about 1 sec rate... :-( Best regards Pierre

Hello Alex, 1) I ran a test as yesterday to reproduce the problem (Live App at 48 kHz). The result a OK and the record also !!! I do not understand. The problem seems erratic ??? 2) I flashed Firmaware Micro USB 1.2.2. Everything was OK included the Captured WAV file... => It looks like the micro is working well. 3) I flashed v1.9.0 + same configuration as yesterday + using CUSTOM and magnetic switch. - The LEDs were flashing the right way. - Same result as yesterday. Only some tiny noise recorded. => I think that the problem is on the SD recording side... 4) I reproduced the test Nb 2) with the same results (OK at any sample speed till 384 Hz) 5) Note : you were right that with v1.9.0 Live App was recording from my Webcam at 48 kHz. Sorry, I did undestood that. Do you have a final diagnostic ? What to do next ? Thanks a lot for your help. Great ! Pierre

Thanks a lot for your fast replay Alex :-) >This is either a microphone problem or an SD card write problem. If it is a microphone problem the Live App should not shouw the spectogram I think. Right ? >The easiest way to check is to install the AudioMoth USB Microphone firmware, switch to CUSTOM and launch AudioMoth Live. I wil do this test the USB Microphone firmware tomorrow (it's night now here in Belgium) >This text will show 384kHz AudioMoth USB Microphone when recording from the HydroMoth. >Check if captured WAV files from the AudioMoth Live app have the same noise. Yes it was the same pronblem when recording at 192 kHz. All test I ran with the HydrMoth are with 192 kHz (on the desk or into the water (recording a pinger which is transmiting ultrasounds). The project is to record orcas next year. I wil try the >However, the data within the files doesn't look like random noise which is strange. >Have you tried reformating these SD cards to FAT32 or exFAT before making a test recording? Yes. I formated the two SD in exFAT. Best regards Pierre