After buying several devices, I was under impression that Audiomoth is a high-end offline recorder. Looks like I was wrong, and there is much more functionality in this tiny box. According to this article https://news.mongabay.com/wildtech/2018/01/audiomoth-device-aims-to-deliver-low-cost-power-efficient-monitoring-of-remote-landscapes/ "The AudioMoth can be programmed to monitor wildlife populations by recording the calls of specific target species while at the same time serving as an alert system when the sounds of human exploitation, such as the blast of a shotgun or the roar of a chainsaw, are detected"
This is really amazing, but I can't find in documentation or in forums how this functionality can be enabled. Where should I look?
Further down the article says - "some low-level knowledge of the programming language C “is required to achieve full use of AudioMoth’s flexibility and produce new detection algorithm implementations". I'm OK with C, if there are APIs and libraries - that would be great. I really like the device, but am looking for real time processing and alerting in addition to offline recording.
Reading the above article, I'm really interested in the "event logging” capabilities of the Audiomoth, for the monitoring of bat species. The issue that I have at present is that the higher sample rate required to record sound in the 18 - 115 khz range, means that although batteries last for weeks, the memory card fills up over two nights because of continuous recording. What I would be interested in is a monitoring mode, with recording triggered by audio above say 15khz. Is this something that anyone is working on? My programming knowledge is very limited, but if there are any projects out there that would give a way forward for developing this type of capability or any resources to get me started I would be really interested?
Many thanks, Tim
This is great. Do you have any timeline when you think this functionality will be externally available?
Yes, AudioMoth can be programmed to trigger recordings. In our recent paper we developed two algorithms for the device. One for gunshot detection and one for cicada detection. These are currently being improved and restructured to work on the current AudioMoth hardware release, therefore the code is not ready for release as of yet.
Alerting is the future direction of the device, you can attach external modules to AudioMoth using the PMOD header next the the LEDs, this allows access to 4 GPIO pins. We are trialling LoRa modules at the moment, which can be used to send real-time alerts.
We will send an email to all subscribers when the algorithm, libraries and PMOD API are released.