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Everything you need to know about BioSonic's AI bat sound analysis platform.
Last updated: 2026-04-26.
About BioSonic
BioSonic is a cloud-based AI platform that automatically identifies bat species from ultrasonic recordings. It classifies behaviour (echolocation, feeding buzzes, social calls), detects up to 7 species per recording, and provides interactive spectrograms for manual review and team collaboration.
BioSonic is built for ecological consultants, environmental agencies, and conservation researchers who conduct bat surveys. It is used for environmental impact assessments, infrastructure planning, wind farm monitoring, and biodiversity research.
BioSonic AB is based in Stockholm, Sweden. The company was founded in 2023 and operates across the UK, Netherlands, Denmark, Germany, and Sweden.
BioSonic was founded in 2023 by Josef Carlson (CEO) and Jonathan Carlson (CTO).
How the AI works
BioSonic applies image recognition on spectrograms of ultrasonic recordings. When you upload WAV files, the system generates spectrograms, runs them through deep neural networks, and returns species identifications with confidence scores. The model can detect up to 7 species per recording.
A spectrogram is a visual representation of sound showing frequency over time. BioSonic converts each bat recording into a spectrogram image and uses deep learning — the same technology behind image recognition — to identify bat species from the visual patterns in those spectrograms.
The model is trained on over 2.5 million verified bat calls and 3.5 million noise files sourced from across Europe. The training dataset was curated by 12 bat experts.
The AI model is retrained and deployed every weekend. Software updates ship every Thursday. This weekly cycle means the classifier continuously improves as new verified data is added.
Yes, like any classifier the AI can make errors. BioSonic provides interactive spectrograms so you can review, confirm, or override every classification. All manual changes are tracked and attributed to the reviewer, creating a full audit trail.
Accuracy and benchmarks
BioSonic achieved 98.9% F1 in a third-party benchmark by Wilder Sensing on 6,126 calls across 15 species, ranking #1 among all classifiers tested. See our benchmarks page for full details.
In a third-party benchmark, BioSonic scored 98.9% F1 vs Kaleidoscope Pro's 83.0%. BioSonic produced 13.4 times fewer false positives and 16.3 times fewer missed bats. See our full comparison for a detailed breakdown.
BioSonic is a cloud-based platform with weekly model updates, behaviour classification, and interactive spectrograms for manual review. See our detailed comparison for a full feature-by-feature breakdown.
Yes. BioSonic has been independently tested in a third-party benchmark by Wilder Sensing (98.9% F1 on 6,126 calls across 15 species). Full results are published on our benchmarks page.
Workflow and file formats
BioSonic accepts WAV files. Upload your recordings directly as recorded by your bat detector — no format conversion or preprocessing is needed.
BioSonic works with WAV files from all major bat detector manufacturers: Batlogger (Elekon), AudioMoth (Open Acoustic Devices), Wildlife Acoustics (Song Meter, Echo Meter), Pettersson Elektronik, Titley Scientific (Anabat), and Dodotronic (Ultramic).
Yes. Upload your AudioMoth WAV files directly. No conversion is needed.
Yes. BioSonic accepts WAV files from Wildlife Acoustics Song Meter devices, including the SM4. Upload them directly without any conversion.
Yes. BioSonic supports WAV files from Elekon Batlogger devices. Upload your recordings directly as recorded.
Team and collaboration
Yes. BioSonic does not charge per seat. Your entire team can access shared projects, review classifications, and export reports from a single organisation account.
BioSonic supports multiple user roles within an organisation so you can control who uploads, who reviews, and who approves final classifications. Contact us at hello@biosonic.se for details on role configuration.
Every action in BioSonic is tracked and attributed. You can see which team member reviewed, confirmed, or overrode each classification, creating a complete audit trail for regulatory submissions.
Security, storage, and compliance
All data is stored on EU-hosted servers. Recordings and analysis results are retained for up to 9 years.
Yes. BioSonic is operated by BioSonic AB, a Swedish company, with all infrastructure hosted in the EU. We comply fully with GDPR requirements for data processing and storage.
All data is encrypted using AES-256 encryption, both in transit and at rest. This is the same encryption standard used by banks and government agencies.
Recordings and analysis results are stored for up to 9 years on EU-hosted servers. This covers the retention periods required by most environmental regulations.
Yes. You can export your data at any time. You can also request full deletion of your account and all associated data in line with your GDPR rights.
Use cases and regional
Yes. BioSonic is used for pre-construction and operational bat monitoring at wind farm sites. The platform handles large volumes of continuous recordings and classifies both species and behaviour, which is critical for curtailment decisions.
Yes. BioSonic covers all UK bat species. The model is trained on verified UK recordings and is used by ecological consultants across the UK for survey work and environmental impact assessments.
Yes. BioSonic covers Dutch bat species and is used by consultants in the Netherlands. The platform supports workflows aligned with Vleermuisprotocol requirements.
Yes. BioSonic covers German bat species and supports monitoring workflows used in RENEBAT and ProBat contexts. The platform handles the high data volumes typical of German wind farm bat monitoring.
We're happy to walk you through BioSonic with a live demo.
Get in touchhello@biosonic.se · +46 72 744 65 85