Reading DTW metrics and the similarity score
What the percentages, letter grades and pitch or duration warnings actually mean.
Call trainer
Learn to imitate ducks, geese and elk
Record your attempts, compare them to a reference by spectrogram and DTW metrics, and track your progress.
Duck Call Trainer
Duck Call Trainer is a desktop trainer for hunting calls. Load a reference recording or find one on Xeno-canto, record your attempt with a microphone, and get an objective similarity score.
The app works offline: your library, recordings and history are stored locally in SQLite.
Features
Reference library
WAV, MP3, FLAC and OGG, drag-and-drop import, normalisation and silence trimming.
Xeno-canto
Search recordings by species, preview them and store the original with its licence.
Attempt recording
Pick an input device, watch the VU meter, stop by timeout or voice activity.
Spectrograms
Split, overlay and diff views keep the reference and attempt in sync.
DTW metrics
0–100 % similarity, letter grade, pitch, centroid and duration.
Trial and Pro
14-day email trial, then Free without losing data; Pro is a per-device key.
A look inside
Latest articles
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Short daily sessions beat rare long ones. Here is a ready-made monthly plan.
Start training today
The first 14 days include every feature. Your data stays with you forever.