Hello, i am new to audiorecording and got my audiomoth yesterday :) i want to record soundscape in the forest. (mainly mammals and birds, because bats arent day active so i can not photograph them :( but i hat one on my trailcam which i liked to see :) )
i want to use the trigger function, for longer lifetime of battery/sd card
config:
-shedule 24h per day
-sleep off
-trigger type amplitude
-min trigger duration 30s
-trigger set to 5%
for testing i placed it on my balcony. but i got continuous recordings :/
first i tried to get the right trigger percentage....but maybe it is easyier to handle another unit as percentage ?
but then i ended up with 70% and got NO recordings :D
with first spektogram analysis i think the main problem here is the water pump of neighbours pond.
it seems to be between 200 und 800Hz
if a bird calls i got amplitudes with peaks to 10% (shown in audacity....i have currently no idea how to scale this right....there are some units ;) ) so i think i have to trogger by 2-5% in forest ?
actual i set the filter from 800Hz upwards...so the pump noise should be gone....this didnt work :/ but maybe there are sounds which are triggering that i dont see in the spektrum....
or is 5% trigger in the noise area of the audiomoth ? so it will always trigger ?
conclusion: 1) which trigger unit is easiest to handle for me ? afaik i cannot monitor sorrounding sounds with audiomoth and check how far it pushes the amplitude :( and in the records i am asked too much how to read it right with the units :)
2) which trigger setup is common for forest application (mammals/birds)
3) is it posssible to get 1hour files with my config, if trigger fails and i get continouos recording. will the sleep/record option work with triggering ?
sorry for my bad english and the beginner questions :)
config:
Device ID : abc123 :)
Firmware : AudioMoth-Firmware-Basic (1.9.3)
Time zone : UTC+2
Sample rate (Hz) : 48000
Gain : Medium
Sleep duration (s) : -
Recording duration (s) : -
Active recording periods : 1
Recording period 1 : 00:00 - 00:00 (UTC+2)
First recording date : ----------
Last recording date : ----------
Filter : Band-pass (0.8kHz - 24.0kHz)
Trigger type : Amplitude
Threshold setting : 5%
Minimum trigger duration (s) : 30
Enable LED : No
Enable low-voltage cut-off : Yes
Enable battery level indication : No
Always require acoustic chime : No
Use daily folder for WAV files : Yes
Disable 48Hz DC blocking filter : No
Enable energy saver mode : No
Enable low gain range : No
Enable magnetic switch : No
Enable GPS time setting : No
the trigger topic is done for me.
i created a new post with the encasing.
so everybode can follow up from this thread
https://www.openacousticdevices.info/support/enclosures/3d-printed-case-prototype