Questions tagged [r]
Questions related to the R programming language r-project.org
35
questions
2
votes
0
answers
25
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SoundGen Spectrogram gridlines
I'm making some spectrograms using the R SoundGen package but am getting a lot of extra grid lines on the image and can't seem to find a way to make them disappear.
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3
votes
2
answers
49
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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 ...
- 173
3
votes
2
answers
202
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How to convert stereo audio files to mono?
I have multiple stereo .wav recordings which I want to convert into mono files for further analysis. Is there a way in RavenPro/R/Audacity to batch convert them to mono sound files (channel 1 or ...
2
votes
2
answers
45
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Difference TFSD from seewave and scikit-maad
I noticed a difference in output when computing the TFSD using the seewave R package and the scikit-maad implementation in python.
Is there any justification and is it possible to get the same result ...
2
votes
1
answer
140
views
Is it possible to calculate the SPL of a sound from a wav audio file?
I recorded a frog's call at a distance of 1 m, with a Tascam DR40x recorder and its internal microphone.
I want to know if there is a way to calculate what is the SPL in dB of that call or/and the ...
2
votes
2
answers
41
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Can't reconcile amplitude from getRMS (soundgen) with output of meanspec (seewave) in R
I want to calculate the sound pressure level (in dB) of a wave and then display the mean power spectrum. The issue I face is that the SPL value I get from getRMS() is very different from the mean ...
- 53
5
votes
2
answers
163
views
How to convert relative db to db SPL knowing microphone specifications?
Similarly to this discussion (Is it common to have a negative-positive dB range in underwater spectrograms?), I used the 'seewave' R package to plot the below spectrograms.
I limited the coloured ...
- 53
2
votes
2
answers
66
views
dynaSpec R package is creating an MP4 file with only audio and no video
I am trying to visualize a short recording of an insect, using a WAV file, using the scrolling_spectro command in the R package ...
- 21
3
votes
2
answers
85
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How to extrapolate time (as hour) per each recording (.wav file) identified in BirdNET?
I deployed some passive acoustic devices to record bird song, and I am using birdNET for the first time. I downloaded the Windows version of the app, set the parameters I preferred and, after running ...
- 33
2
votes
1
answer
145
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How to preserve amplitude scale from original .wav audio file to output .wav file in seewave and tuneR packages after filtering
I am currently working on a project where I would like to read in an audio file, apply a butterworth filter, and then export the filtered audio file while preserving the scale of the amplitude from ...
2
votes
2
answers
113
views
Error using lts() from R package seewave
I am dealing with an unusual error in trying to create long-term spectral averages with the lts() function from R package seewave. I have a 1 h long time series made up of audio files of 5 minutes ...
- 141
3
votes
1
answer
99
views
How to decode .dat files obtained from SonoTrack?
Disclaimer: I have advanced knowledge of Python, R, and Matlab, so we can skip the basics (such as how to load a file into a programing environment).
The quest is to somehow decode data from .dat ...
- 153
3
votes
1
answer
63
views
Acoustic Complexity Index total is the same for every file
I'm calculating Acoustic Complexity Index (ACI) for each 30 minute audio file. However each file total is always the same. "30.179" for max freq set at 500 Hz, "34.86996" for max ...
- 31
5
votes
1
answer
77
views
Extracting Click trains (from the click train module) in R
I am processing some data collected with a towed array, where we aimed to detect a species of porpoise in Peru. After setting up the click detector, I am trying now to add the click train detector ...
- 51
3
votes
2
answers
63
views
PSD calculation using seewave
I'm trying to calculate a mean PSD value from each .wav file inside a folder with many sound files. I'm using seewave to calculate this but having trouble finding a nice result for my further ...
- 31