See the sound. Animal Echo records an animal or bird call and turns its acoustic structure into an interactive 3D shape you can rotate, pan, and zoom into with your fingers.

Every call has a hidden shape: pitch, timbre, and volume shifting together across every 50-millisecond slice. Animal Echo pulls that structure out on-device and plots it in 3D, alongside a spectrogram and waveform, synced to playback of your original recording.

HOW IT WORKS
- Record up to 20 seconds of any animal or bird sound
- Choose a noise level (quiet, medium, or noisy) so the app knows how aggressively to clean up wind and background hiss
- On-device analysis extracts pitch, spectral centroid, and bandwidth for each moment of the call
- Explore the result as a rotatable, zoomable 3D trajectory, tap any point to see its exact values
- Compare against a spectrogram and waveform, with synced audio playback
- Save recordings with a species/behavior note and revisit them anytime in your history

WHAT THIS APP IS NOT
Animal Echo does not identify species and it does not translate calls into words. It shows you the shape of a sound so you can see structure a human ear alone can't easily compare - not what an animal is "saying."

100% OFFLINE
Every recording is analyzed entirely on your device. No internet connection is required, no audio ever leaves your phone, and the app works exactly the same in a quiet backyard or deep in a forest with zero signal.

Small, unobtrusive banner ads support development. Ads never cover core screens like recording, analysis, or the 3D view, and they simply don't appear if you're offline - they never block or interrupt using the app.

Built for curious birders, nature recorders, students, and anyone who has ever wondered what a call actually looks like.