Taking the fun out of bird-watching: microphone array, beam-forming, and acoustic manifolds

Mike Davis

Playlists: 'emf2026' videos starting here / audio

For most bird-watchers, the fun part is watching birds in their natural habitat. For me it's all about the large-scale collection, analysis and visual representation of bird-song.

In this talk I'll show you what inspired this project: visually representing the complexity and beauty of bird-song. We'll start with the slightly janky hardware I built to collect the audio then move on to the processing pipeline that tries to find each bird in a tree. Finally, we get to see what an acoustic manifold looks like in 3D video form.

A large, hacky, microphone array, an FPGA, verilog, high-speed USB, lots of Python and a lot of swearing at an AI.

This project was inspired by Lucio Arese's beautiful acoustic manifold videos: https://www.youtube.com/@lucioarese

Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/

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