Hi,

I tried to install Chime on my mobile and got this:

Is there a newer version available for Android?

Thanks,

Dana

Hi,

Can anyone tell me what i need to change that the moth will start recording immediately without any set time. (only recording period is set once - to limit the filesize) It could name the files like 1.WAV, 2.WAV or so. i dont need a timestamp and the setting of the time only complicates deployment. GPS only needs battery...

The next thing i'd like to know is why this device "looses" its firmware sometimes if the battery is disconnected for some time.

Thanks in advance

Phil

Hi everyone,

when reading the documentation on Github I see that the sampling rate is capped at 192 kHz for use with the dedicated GPS sync FW (https://github.com/OpenAcousticDevices/Application-Notes/blob/master/Using_AudioMoth_GPS_Sync_to_Make_Synchronised_Recordings/Using_AudioMoth_GPS_Sync_to_Make_Synchronised_Recordings.pdf). When I look at the sample SETTINGS.txt (https://github.com/OpenAcousticDevices/Application-Notes/blob/master/Using_AudioMoth_GPS_Sync_to_Make_Synchronised_Recordings/SETTINGS.TXT) provided the parser seem to enforce 125 kHz. I am interested in recording bats and localizing them with synced MicroMoths and I was hoping to use a sampling rate of 384kHz. Is it not possible to sample that high when using the GPS hat?

Best wishes,

Felix

Hello,

When I use the Chime app to start an audiomoth recording, and select GPS in that app, does it save that GPS in the audio metadata?

I have taken to taking a photo and using exif, but if the data is in the wav somewhere that would be ace.

Thanks

Is it possible to modify the firmware so that the data stored on the SD card can be accessed via USB connection, instead of removing the card from AudioMoth and connecting it to a PC with a card reader?

Hello,

Great work. I'm currently using the HydroMoth as well as 2 USB microphones for another project.

Everything is ok.

I wonder how it could be possible to configure the USB microphones using a simple HDI or another USB command.

Indeed, since there is no battery on this board the configuration cannot be permanent and each time the board is unplugged the configuration is lost.

Default configuration, 384 kHz, no filter, average gain is ok in most cases but if I want something special, it's not possible.

Hello, I was able to compile an edge impulse model and used the audiomoth-edgeimpulse repo to flash onto my audiomoth. it does appear to be working, I'm just confused about a few settings and how to interpret the results.

My main question is- Edge Impulse requires at least 2 classes to train an acoustic classifier. I have one class being my bird of interest, and my second class is "background noise" of either other birds in the area or just regular background noise. But I was unable to see where in the audiomoth firmware where you tell it which class to look for and "trigger" to store on. Is it triggering and storing the results for both classes? Or just the first class? I would prefer it to store only the class of interest. Based on the saved wav files im getting, it seems to be storing both, but I…

Hi, I have an AudioMoth and I haven't tried to use it since a year ago or so. It's less than two years old. I can't get it to be recognized by either of my Windows 11 computers. Power to the device occurs but nothing in the device manager. I have tried installing drivers from Silicon Labs to no success. It used to work with my old computer running a much older Windows OS. I'm thinking software got corrupted on the AudioMoth. Multiple cables, multiple computers, multiple drivers. Batteries removed. I give up. I can't see a reset switch anywhere on the AudioMoth device. I get a solid green light on the device so there's power but no life.

Hello, is there a way to record at 24kHz sample rate? I cannot see the option in the AudioMoth config, but I wonder if there is an alternative way to do so?

Thanks a lot!

Rod

Hello, I have been having issues with getting some GPS hats to get a fix.

I have successfully soldered some Audiomoths and GPS hats together, and they have been able to get a GPS fix from inside a lab room inside a building, far away from doors and windows. However, two other Audiomoth/GPS hat units have not been able to get a fix from the same location, even if close to doors and windows. I have been using a SETTINGS.TXT file that the functional units have been able to get a fix with. I can provide the file if it would be helpful to see it.

Both Audiomoths function properly with Audiomoth-Firmware-Basic and can record files using a configuration from the Config App that does not use the GPS hat. When I soldered the functioning Audiomoth/GPS hat units together, I used a multimeter to measure their resistances and connections, and…

Hello Open Acoustic Devices,

I wanted to get some clarification on a problem we have observed when using the Audiomoth to collect recordings in an outdoor natural area. We sample at 192kHz, 300s/300s record/sleep cycle, and equip our Audiomoths with 6 or 9 AA rechargeable batteries.

We have noticed that our Audiomoth sometimes changes mode during deployments and produces "empty" 488-byte files that do not contain data and are short. It goes into this mode and might generate 100s of such files and then comes back to generating normal files.

I am attaching a couple screenshots from previous deployments of the file explorer view alongside an exiftool-based readout of the file metadata. You can see the normal files will be generated before and after the error "488-byte" files. These problems persist in the same manner even to this day with new firmware and new Audiomoths.

I can generate a SUMMARY.CSV…

Hi,

new to the game. I was always curious to record birds and bats here but never got further than Bird.net on my phone.

So I bought an AudioMoth :) Got some nice recordings from "our" bats here yesterday night.

Moth Play is a nice browser-based app; however, I see some possible improvements:

• Keyboard Navigation in File-List: Maybe CTRL-Cursor Up/Down to goto the next/prev file and load it. Nice for checking through the recordings (now it is mouse only?)

• Save as: Saves a WAV playable on any computer JUST as it is played inside Moth Play for sharing. Should ask for a File-Name and remember its folder All the best, Carsten
  

I need to synchronize the recordings of several AudioMoth devices with microsecond precision. I attempted to do this by turning the devices on approximately simultaneously in default mode and recording a reference signal both at the beginning (within a few seconds) and at the end of the recording, just before shutting the devices down.

Unfortunately, the signal at the beginning and the end of the recording is sometimes not captured.

I have three questions regarding this:

1. How long does it take for an AudioMoth device to start recording after being powered on (in seconds or milliseconds)?

2. At what intervals are recordings saved to memory (e.g., every minute, every 15 minutes)?

3. Are any recordings lost or skipped during the saving process, or is all data continuously stored?

Hi, I'm using the civil sunset to civil dawn setting for my nocturnal migrating bird recordings, based on lat/long and using a rounding of 1 minute. My recordings start about 3 minutes later than the scientific sunrise/sunset tables I used in the past. Is this normal variation for the AudioMoth, or is there something else I can do to have an exact match with the times calculated in the tables? Thanks for your assistance!

John

I wonder if it is possible for the developers to add a feature to the firmware whereby configuration files could be made time and date specific?

In other words during daylight hours a configuration optimized for birds and mammals could be loaded, and during the hours of darkness a configuration optimized for the ultrasonic detection of bats loaded? or alternate between night time ultrasonic and normal spectrum on different days.

This would be a powerful feature maximizing the amount of data a single device could gather in an unattended deployment.

Hello, i have the audiomoth recording continuously 20s on and 5s off but I want to get it to only record when the amplitude and frequency are correct. Please see my config file below. Any suggestions on changes I need to make please?