Bioacoustics Stack Exchange Community Digest

Greatest hits from previous weeks:

How do I use BirdNet without getting an error?

BirdNet is very new to me and I can't really find a guide online. I've installed it, and I've done the 'pip3 install pywebview gradio' to use the GUI version. Every time I've uploaded a recording and ...

birdnet python

asked by user3253741 Score of 2

answered by WMXZ Score of 0

How does PSD accuracy change with FFT size?

I know that as FFT size is increased, spectral (frequency) resolution increases and temporal resolution decreases (and vice versa when FFT size is decreased). ...

spectral frequency fft

asked by Chloe Score of 20

answered by fabio_hirono Score of 15

What is the purpose of overlapping windows in acoustic signal processing?

When reading the methods sections of bioacoustics papers, I often see a window length and % overlap reported in the description of how the spectral analysis was done. What is the purpose of this? ...

analysis best-practice processing window

asked by Chloe Score of 13

answered by WMXZ Score of 11

Is this sound made by 'Flipper' dolphin tv series real?

Flipper was a tv show in the 60s about a dolphin and his humans. There is this sound that flipper supposedly makes out of water that is unlike any other dolphin sound I have heard (I have studied ...

identification dolphins call-identification fictional-sounds

asked by Shannon Score of 16

answered by Noil Score of 17

How to reduce the unwanted wave noise in Hydrophone recordings?

Many times hydrophone recording contains unwanted noise like 'wave noise'. How to deal with this noise at the source? Is there any way to deal with this in the analysis stage? as abrupt noise impacts ...

noise hydrophone water marine

asked by Sougata Sadhukhan Score of 18

answered by Rasmus Score of 7

Towed Hydrophone Array Hardware Options

Periodically I am asked for recommendations on where to purchase a towed hydrophone array, or how to build one. For years we developed/built towed arrays and have shared these methods (last version ...

hydrophone hardware towed

asked by Shannon Score of 14

answered by Carly Batist Score of 5

BirdNET: workflow for correcting manually trained classifier?

I am using BirdNET GUI for analysis of bird vocalizations. I have created a classifier using the GUI and some training data, and I am wanting to improve it, e.g. correct false classifications and ...

analysis machine-learning birdnet classifier

asked by Emma Score of 1

answered by Dan Stowell Score of 2

Can you answer these questions?

Does anyone have a translated copy of Schevchenko's 1975 paper on interactions between killer whales and other cetaceans?

I am looking for a translated copy of this citation: Shevchenko, V. I. "The nature of the interrelationships between killer whales and other cetaceans." Morskie Mlekopitayshchie Chast 2 (...

historicalpaper manuscript

asked by etgriffiths Score of 1

What is the origin of this underwater low-frequency upsweep signal?

I've been trying to identify underwater sounds recorded in the eastern North Atlantic Ocean, at a 500 Hz sampling rate. I observed this low-frequency upsweep that was only produced once, but it shows ...

underwater species-identification

asked by Andreia Pereira Score of 2