Biosonic logo with the tagline "Nature Speaks. We Translate."

How it works in 5 steps

The problem before BioSonic:

For years, bat AutoID was built on shortcuts:

“If sound is above 50 kHz and loud → pygmaeus.”
That works in a lab…

The problem is in Nature where bats feed🦟socialize 💬, overlap and noise enters the recording (like crickets 🦗)

Bats don’t follow rules.
Old AutoIDs do.

Following is the 5 steps used to build BioSonic.

  1. The Insight

Bat Experts look 👀at Spectrograms for species identification,
so we asked a simple question:

“Why shouldn’t AI work the same way?”

2. How BioSonic built the world leading AI analysis of bat calls:

AI that sees spectrograms 👀

We built our custom image-recognition AI model trained specifically for bat spectrograms.

Same method humans use.

Just faster. And consistent.

with AI Expertise from Cambridge University.

3. Training data: 14 Bat Workers, 2.5M Bat Files

BioSonics AI is trained on 2 500 000 bat files from 12 bat experts in Northern Europe. Then validated again by 2 bat workers to ensure highest quality.

4. Made for lightning fast review by bat consultants


In the analysis below the AI found 11 000 soprano pipistrelle (74%) , which happens often. Also Noise files are often >70% of all files.

BioSonic moves most calls out of the way automatically, so consultants can focus on reviewing what matters, usually

  • Pond bat, natters, parti colored

  • Faint calls (Barbastelle, Brown long-eared)

  • Rare & strange social calls

5. Automating graphs, maps & Tables 📈

Since it’s 2026 we obviously automate the graphs & maps:
⬇️One click download into your environmental report.

Anything missing? write me and we’ll add it:
josef.carlson@biosonic.se

Hundreds of Bat Workers at organizations like these save time today with BioSonic

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Are you ready to listen analyse bats files faster?