Forum Comments

AudioMoth Configuration App 1.3.0 & Firmware 1.4.0
In Announcements
EwanP
Jun 05, 2020
Alex, Peter, and team. Thanks for what looks to be a set of very useful improvements. I'll run some field tests giving back-back comparisons between the 1.3, 1.4 and triggered firmware versions and post the results here. Unfortunately the wet weather last night prevented any attempts at bat recordings. A couple of questions and inevitable feature requests. 1) What is the roll-on /roll-off of the new filters? Looking at figure 5 in the white paper the filter looks to be quite slow with gain = 0.2@24kHz and 0.8@72kHz, so sensitivity of the detector will vary with frequency through most of the range of interest for bat recordings. 2) Would I be right in thinking at that if the LFP were set at half the sample rate then aliased signals would be removed (or at least significantly attenuated)? I very much appreciate the Amplitude Threshold Recording and can see this being very useful. A few feature requests if I may: a) As more and more parameters of the AudioMoth become configurable it becomes increasingly important to be able to audit the configurations actually used in the field. Please consider adding functionality so that on start-up (switch moved to "Custom") the AudioMoth writes out the current configuration to a txt file on the SD card. Alternatively add the configuration information to the INFO chunk in the WAV header. b) Can the file expansion functionality be broken out from the main configuration app, preferably into a stand-alone program that can be scripted into batch files on Windows or Linux shell scripts? c) Can the file expansion functionality be extended to generate a new file of max duration X seconds at the start of each chunk? This would be very useful when working with classifiers such as TadaridiaL which have an input file size limitation. As these last two features are probably edge cases from your perspective so if I wanted to look into this myself should I start with "decompress.js" and the "Expansions" folders on GitHub? Finally, any news on the "AudioMoth Labs" site that was talked about last year? Again, many thanks for all your hard work. EAP
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AudioMoth Configuration App 1.2.2 & Firmware 1.2.1
In Announcements
EwanP
Apr 06, 2019
Peter, First, thanks to you and the team for developing this wonderful device, which as so many potential applications. While attempting to update to firmware version 1.2.2 I have run into a problem with the "flash" utility which reports "No serial ports found". What seems bizarre is that I've had this outcome on 3 computers; two ruining windows 10, and one running Linux Mint 18.3 Cinnamon 64-bit! In each case the configuration app is able to communicate with the AudioMoth over the USB cable. On the Linux machine I get the same outcome with "./flash" or "sudo ./flash" so it's unlikely to be a permissions problem. If it helps diagnose this problem the following is the results from "lsusb" :> Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 005: ID 04f2:b15e Chicony Electronics Co., Ltd Bus 001 Device 011: ID 10c4:0002 Cygnal Integrated Products, Inc. F32x USBXpress Device Bus 001 Device 009: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 001 Device 008: ID 0451:2046 Texas Instruments, Inc. TUSB2046 Hub Bus 001 Device 004: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub Bus 001 Device 003: ID 138a:0007 Validity Sensors, Inc. VFS451 Fingerprint Reader Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub and from "dmesg" after connecting and then disconnecting the AudioMoth:> [409101.914480] usb 1-1.4.4: new full-speed USB device number 12 using ehci-pci [409102.009750] usb 1-1.4.4: New USB device found, idVendor=10c4, idProduct=0002 [409102.009757] usb 1-1.4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [409102.009763] usb 1-1.4.4: Product: AudioMoth [409102.009767] usb 1-1.4.4: Manufacturer: openacousticdevices.info [409102.009771] usb 1-1.4.4: SerialNumber: 0100 [409102.012165] hid-generic 0003:10C4:0002.0007: hiddev0,hidraw2: USB HID v1.11 Device [openacousticdevices.info AudioMoth] on usb-0000:00:1a.0-1.4.4/input0 [409152.921322] usb 1-1.4.4: USB disconnect, device number 12 Clearly I am doing something wrong but would appreciate suggestions on how I can resolve this. Many thanks EwanP
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