Questions tagged [ltsa]

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2 votes
1 answer

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 ...
Mario Rollo's user avatar
5 votes
0 answers

Setting Triton to Make LTSAs for Channel 1

How to set Triton to only work with channel 1 of my files? I know a solution would be to split my files, but every time I try, Sox tells me the channels are unreadable and when I load the files into ...
Karianne Kapfer's user avatar
3 votes
2 answers

MATLAB Crashed When Using PAMGuide for Large Datasets

I am trying to do soundscape analysis (LTSA, PSDs, TOLs) using PAMGuide in MATLAB. However, after loading about 50-100 files/455 files (depending on my frequency range), MATLAB crashes. Given that the ...
Melanie Smith's user avatar
8 votes
2 answers

Very slow creation of LTSAs from 10-min wav files using Triton

I am generated LTSAs (long-term spectral averages) using program Triton. I have done this lots in the past, but for my most recent dataset, the LTSA creation is taking WAY longer than ever before... ...
selene's user avatar
  • 3,515
9 votes
2 answers

Date ticked LTSA using PAMGuard binaries from duty cycled soundtrap data

I am trying to produce an LTSA of a 3 week period of data from 2018 and the same period in 2020. My 2018 data was collected using a SoundTrap on a 10 min on/10 min off duty cycle. I have processed the ...
Laura P's user avatar
  • 595
6 votes
1 answer

Low cost hydrophones for quantitative sound pressure measurements?

Has anyone experience with using low-cost hydrophones, for example the Acquarian Audio H2a, and use a calibration measurements, for example by comparing to a Brüel Kjaer 8106, to get quantitative ...
Jörg Rychen's user avatar
9 votes
1 answer

What happens when PAMGuard freezes (due to memory issues) while creating an LTSA?

I'm using PAMGuard to process some recordings and I keep having an issue where it is freezing. I'm trying to create an LTSA at the same time as using the GPL detector (for blue whale A/B calls). I ...
Cory Hom-Weaver's user avatar
20 votes
4 answers

Software for calculating long-term spectral averages

What software programs exist that can be used to calculate sound levels for long-durations of continuous audio files? A helpful list of other sound processing programs was shared recently: https://...
Samara H's user avatar
  • 531