Questions tagged [terrestrial]

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2 votes
2 answers
76 views

How can I measure indisctict temporal(Pulse duration) properties of call?

I'm in my very first year of master's course and bioacoustic studies. My topic is the temporal/spectral structure of Rain call in Treefrog, which is poorly investigated for its function worldwide. ...
Park's user avatar
  • 21
1 vote
1 answer
38 views

What kind of cheap ultrasound speaker would you recommend for basic playback tests?

I'd like to test the sound response of some rodents to ultrasounds (~40-100 kHz), but my recording/playback devices (microphone, speaker, soundcard) are for human-hearing range. Regarding speakers, ...
Noil's user avatar
  • 4,121
3 votes
1 answer
48 views

Help identifying the species or group for this ultrasonic vocalization (a rat?)

I am reviewing some audio recorded with an Audiomoth a couple of weeks ago in Bolivia (south America). The target group was bats, but I found these vocalizations which are unlikely for a bat due to ...
user1396's user avatar
8 votes
3 answers
85 views

What is the threshold to distinguish a birdsong dialect?

I was wondering how researchers are able to establish that a geographic song variation in terrestrial birds is actually a song dialect. What is the threshold of acoustic indices which could identify ...
ana-alcantara's user avatar
9 votes
1 answer
537 views

Is it true that cats don't really meow at each other, but rather at humans as a way to communicate?

This is one of those little factoids that is tossed around a lot. Cats meow as a means to communicate with humans, and not really at each other. It's a fact passed around at parties or in pop sci ...
etgriffiths's user avatar
  • 3,618
12 votes
3 answers
130 views

Guidelines/Standards for terrestrial ecoacoustics studies

Can you provide useful resources about existing guidelines/standards (or even common practices) for terrestrial ecoacoustics studies (recording entire soundscapes, not specific taxa)? More ...
Maxime BRU's user avatar
20 votes
6 answers
104 views

Terrestrial & aquatic/marine collaborations in bioacoustics

Bioacoustics at present seems very split into two camps, terrestrial & marine/aquatic and it doesn't seem like there is as much collaboration between the two as there could be given the ...
Carly Batist's user avatar
  • 3,370
11 votes
3 answers
60 views

Existing research on using passive acoustics to monitor Pika or other small, vocal mammals?

I'm interested in using passive acoustics to monitor for the presence of pika (Ochotona spp.). I have found very few publications that consider pika vocalizations (none in the last decade), and none ...
KMerkens's user avatar
  • 221
10 votes
5 answers
74 views

Where do you put a terrestrial recorder if you have no freestanding structures to attach it to, and also can't put a stake in the ground?

I have a terrestrial acoustic monitoring situation that presents two challenges: Acoustic monitoring is being conducted in an area with limited options for attaching the units (i.e., very few ...
Cathleen B's user avatar
  • 1,024
9 votes
1 answer
97 views

Calculate noise exceedance levels - passive acoustic monitoring

I am trying to describe the acoustic environment at a nature reserve based on continuous passive acoustic monitoring. I am using calibrated SM4 (Wildlife acoustics). KaleidoscopePro does provide batch ...
Yael Lehnardt's user avatar
8 votes
1 answer
39 views

Differences in length of time Audiomoths record with same batteries/SD cards/settings?

I deployed 26 Audiomoths in my last field season and am just starting to organize the data. I've noticed that there seems to be a LOT of variation in the amount of time each device recorded - the ...
Carly Batist's user avatar
  • 3,370
5 votes
1 answer
46 views

Simulating indoor/terrestrial sound propagation to test analysis workflows

I'm currently trying to analyse multi-channel audio recorded in a cave (reverberant conditions). I'd like to check how well my bat calls are being localized, and the extent to which reverberance ...
Thejasvi's user avatar
  • 4,070
6 votes
2 answers
88 views

Packages to acoustically localise animals with microphone arrays

I'm looking to localise vocalising (terrestrial) animals (in my case bat calls) based on time-difference-of-arrivals with an open-source package (preferably written in an open-source language too). ...
Thejasvi's user avatar
  • 4,070