No files on devices
Hi, I have a Audiomoth dev 1.0 and I try to program in the same way as 1.2.0 But I didnt get any soundfiles on the sd-card. Either I didnt get any lamp to lightened. Do you have any suggerstion?
Lars
Hi, I have a Audiomoth dev 1.0 and I try to program in the same way as 1.2.0 But I didnt get any soundfiles on the sd-card. Either I didnt get any lamp to lightened. Do you have any suggerstion?
Lars
Hi Folks,
I can't find anything describing the provision of a cable inlet on the usb microphone case. It seems that it must have such a thing, or else the case would be a bit useless! Can anyone help me find out what sort of size cable can be used with the case?
My intended application is for providing audio for a bird feeder stream that is currently coming from a USB camera mounted indoors, pointed out a window.
I'd like to see if I could use a flat USB cable to pass through the window frame to an audiomoth usb mic outside, then into a hub and onto a USB extension cable to the streaming encoder pc.
Hi Zaphod,
The USB microphone case isn't fully waterproof - there is no seal on the housing and the switch, USB and 3.5 mm jack sockets are exposed. It's really intended for attended deployments whilst doing bat or hydrophone surveys.


Lots of people do deploy them anyway, and just seal up all the potential leak spots.
You could place the AudioMoth USB Microphone (or AudioMoth Dev or standard AudioMoth with a 3.5mm socket), into a regular waterproof enclosure, and use the the AudioMoth external microphone (https://www.openacousticdevices.info/product-page/audiomoth-external-microphone). This is fully waterproof with an acoustic vent and fits a 16 mm hole.

An (larger) alternative would be the AudioMoth Dev PCB in the AudioMoth Dev case, with a cable passing through the 16 mm vent hole in the base.

A fully-waterproof AudioMoth USB Microphone case is on the development list.
Alex
I am wondering if anyone has specifics (other than minimal draw down) at the rate of draw down on batteries when units are in the USB/off mode? I am deploying 40 units in a couple weeks. They are going to be deployed in really remote areas, so we'd like to get as much as we can out of the batteries, but at the same time, I'd like to get all the units set up and not have to install the batteries in the field.
Hi Kara, AudioMoth uses less than 80 uA when in USB/OFF - about 2 mAh per day. Alex
Hello,
We have currently deployed 55 audiomoth in Indre (France) from March 14 to July 10. Many of them have already been used in 2025 over a similar period, they are equipped with an external EM 272 microphone and installed in a case (custom 3D printing) to be protected.
Currently, we are experiencing an issue with several audiomoths, which is as follows: some audiomoths run for a few days before stopping, some only last 3 or 4 days, and others 8 or 9 days. We use the chime in programming to systematically launch the audiomoths and record every night from 30 minutes before sunset until 30 minutes after sunrise.
We check the SD cards (SanDisk Extreme 32Gb A1 U3 V30) every 10 days and change the batteries (Eneloop 2000NiMH).
Is this recording problem coming from the SD card, the batteries, or even the audiomoths?
We are trying to understand where…
Hi,
Can you use the ‘Summarise AudioMoth Files’ option under the ‘Process’ menu in the Config App to generate a summary of one of the SD cards so we can see what it recorded.
Alex
Hi Lars, AudioMoth Dev will work the same as the standard AudioMoth if the same firmware is installed. Can you check with the Config App or the Time app, which firmware is installed. How are you powering the AudioMoth Dev? What make and model of SD card are you using? Alex