Questions tagged [methods]
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11 questions
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How do I shorten call selections to only contain the signal and not background noise using warbleR or ohun in R?
I have drawn >4000 selections on seabird chick call spectrograms in Raven with ~0.1 to 0.4 seconds on either side of the signal (a stipulation of the call parameter measurement software I was ...
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Raven Pro: how to display two different selection tables at the same time?
My first post here...
Using BirdNET, I have created two selection tables, each at a different Confidence setting, for display in RavenPro. The source files are 48k, 2-channel, 16-bit signed .WAV.
I ...
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How can I pair a scrolling spectrogram with high resolution video?
I’m looking for a way to review very high resolution video alongside a scrolling spectrogram of the associated audio track. Some DAWs that have spectrograms (Adobe Audition,Reaper) allow for ...
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Sustainable alternatives to sonobuoys?
Sonobuoys are expendable temporary hydrophones typically used by the military, but they can and are used for real-time tracking and localization of vocalizing marine animals. There are obvious ...
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Categories of Bioacoustics Software
Some of you may have seen Tessa Rhinehart great list of bioacoustics software https://github.com/rhine3/bioacoustics-software
We're in the process of trying to turn this into an easier to use ...
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Methods to segment CF and FM components of a call?
I have single-channel recordings of horseshoe/rhinolophid bats which have call shapes with a 'tabletop' or 'staple-pin' shape. (See spectrogram below). The flat portion is the 'constant-frequency' ...
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Measurements to report when describing new animal vocalization
This may be slightly similar to this question and this one.
I am in the process of describing a new marine animal vocalization (unknown species). Are there recommended call measurements to report when ...
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Distinguishing between types of recorder calibration
I have come across many terms to describe different types of recorder calibrations (e.g., end-to-end calibration, point calibration, factory calibration) and the whole topic of recorder calibration ...
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Data augmentation strategies for bioacoustics machine learning
When training a Neural Network for bioacoustics classification tasks I usually follow a data augmentation pipeline which is composed of:
Changes in sound to noise ratio: for instance, if my sound ...
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Which methods /software/scripts can be used to time-align recordings from an acoustic array?
In the past, I used Osprey and I am aware of the script by Malinka et al., 2020. What other methods/scripts/software folks have used and would recommend?
Here's some background on the dataset:
I have ...
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Can we measure distance from the animal harmonic calls?
Harmonic calls have a fundamental frequency (f0) and integral multiples of that frequency as harmonic frequencies. Since the lower frequency sound wave has a low attenuation rate and the higher ...
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