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I am starting a bird vocalization monitoring project with an Audiomoth, in Los Angeles and I'm looking for assistance with how to do the audio processing on my computer. Can someone help me find the right resources?
Thanks
joe
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Hello!
I’m experiencing an issue with around 15–17 AudioMoth devices. They can be configured without any problems initially, but after some time the configurations are lost and the devices revert to their default settings.
I’ve already tried replacing the batteries, reflashing the AudioMoths, and using different SD cards, but the problem still persists. What could be the cause of this, and are there any additional troubleshooting steps you would recommend? Could this indicate an issue with the flash memory, meaning the devices might be defective?
Thanks in advance!
Hi Mohamed, I don't think this problem has been described before. It's maybe possible that the user page of the flash memory is being corrupted, but it seems unlikely that only one page of the flash would be affected and not others. Seems strange that so many devices are affected. The mechanism in the firmware is that each time the AudioMoth powers on from a powered-off state, it checks the firmware version and description in the user area of the flash against the current version in the firmware and replaced the configuration in the user area of the flash with the default one if they do not match. This would return the configuration to the default setting. When do you notice that the configuration has been reset? What make and model of SD card and batteries are you using? Alex
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They last about two months, and then NONE of them enumerate anymore. I have debugged in Linux and Windows - they are not being recognized. I have tried re-zapping the firmware - nothing. LEDs work.
Should I just throw these away?
Hi Gil,
It's very unlikely that all four have failed. The most common reason for no communication between the AudioMoth and the computer is that the USB cable is a charging cable and has no data lines. The first thing to do is to double check that the cable allows communication with other devices (or try a few cables).
If that doesn't fix it, can you describe in more detail what happens when you try to reflash the firmare. Is the device recognised by the Flash App? Alex
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Hi folks. Just looking for clarification/confirmation that the audio trigger feature can be used on audible frequencies and not only ultrasonic? Thanks in advance.
Yes, you can use amplitude and frequency triggering at any sample rate and detect any frequency. If you some examples of un-triggered recordings, you can upload them to AudioMoth Play (https://play.openacousticdevices.info) and experiment with the settings. Alex
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I started using hydromoths in the summer of 2023 and, at that time, I did not have issues with leaking cases. In 2024, I saw some leaks and this past summer, 2025, I lost several moths due to leaking cases. I buy new moths and cases each year. Also, I deploy at less than 5 meters in seawater. Has the case changed in recent years and does anyone have any suggestions for how to keep cases from flooding? I always make sure the gasket is clean before redeploying, so that's not the issue. A colleague has started duct-taping the seam, which does not seem like a great answer. Any help would be appreciated.
Hi Tom, The underwater case lid and base is unchanged since its first release, so it is likely a gasket issue. Could you send some example pictures of the black gasket where you experienced this issue?
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Hi,
I own 10 AudioMoths v1.2. I am using them for long-term monitoring of a restoration project. I have to configure the devices to record weekly (like every Monday) with 24 hr recording (continuous or 1 in 10 minutes). I am not able to figure out how to schedule it for weekly recording. I am using the latest version of the configuration app. Can anybody help me with this?
Hi Akash, This isn't possible with the standard configuration tools, but we've done this through a custom version of the firmware in the pase. Can you email me (alex@openacousticdevices.info) with the typical configuration that you would need. The custom firmware has the complete configuration pre-set and doesn't use the Config App. You just set the time with the Time App or smartphone app before deploying. Alex
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Hello,
I have 4 hydromoths and one has started showing the long duration green and red flashing lights.
The device seems to save a config file out but nothing else. Using the same configuration for the other devices they are all working fine.
SD cards used are the sandisk extreme 64Gb, the batteries are energizer rechargables NiMh. These are the same as the other devices which record fine.
I have tried:
Using default recording - get long 5 long green and red flashes followed by short green and red flashes with nothing saved out.
Hi Ross, Does the problem follow the device or the SD card? Are the batteries definately fully charged, and have you reformatted the SD card? Alex
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I bought an audiomoth dev by mistake instead of comum model. I am using a JST-PH conector to power it and I can configurate it on my note . But I am not getting results, no records. Is there something more to do them powering it? Many thanks for help.
Hi Fernando,
What type of battery are you using? Double check the polarity of the battery connector - there is no standard and different suppliers will use different polarities by default. You can change the polarity by lifting the small plastic lever that holds the crimped end of the wire inside the plastic housing, and swapping the ends over.
Alex
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I'm testing five audiomoths with a gps hat, the gree light stays on with red light flashing. No sound files and the attached GPS.txt files created. If not uisng the GPS, the audiomoth records
Hi Luiza, The GPS modules are not getting a good fix. Are you testing inside? They will likely need a clear view of the sky. Alex
Hi Joe,
For viewing AudioMoth recordings we'd recommend AudioMoth Play (https://play.openacousticdevices.info). You can apply filters and generate vidoes and audio clips. Many people use platforms such as Arbimon (https://arbimon.org) to store and analyse more extensive sets of recordings.
Similarly, BirdNet (https://birdnet.cornell.edu) is increasingly use for automatic AI analysis of bird song.
Alex