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Build a short phrase from three or four elements and repeat it at different tempos. Compare individual metrics, not just the final score.

","85ec816d-9ec9-44c0-aef9-3a44feec27d1","heading","Weeks 3 and 4: phrases and variation","88f9d218-d3d6-46f0-b10c-87ab61be3f93","quote","Record everything. Your ears lie; the spectrogram does not.","4e3b9ff2-03a9-4611-96ee-cddac25c344e","

Practise moving from a quiet call to a loud one and back. Watch the duration metric — it shows how steadily you hold the note.

","fe090edc-2ec7-409e-8f9c-e394772d1141","Week 2: volume control","c81077e5-c77c-4944-89c4-19688ea314e2","attachment",{"_36":103,"_62":104,"_64":65,"_66":67,"_68":-5,"_70":105,"_72":73,"_74":-5},"86d8c3bc-21bf-4392-ab73-aafe2b739a43","Four-week practice checklist","A PDF with exercises and space for notes.","application/octet-stream","

Aim for a clean sound without extra vibration. Record every attempt in the app and compare it with the reference in overlay mode.

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Your mouth muscles and breath tire faster than you think. Fifteen focused minutes a day build steady progress, while one hour a week mostly builds frustration.

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Warnings do not change the score directly, but they show what to fix in the next attempt.

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Check your trim: extra silence at the start or end shifts the alignment. Keep only the working fragment in the editor.

","3a9208b4-57b8-43e4-bf5f-17ccd36ae143","Why a similar sound can score low","3a390bd4-1b33-4ebb-9bb8-440803396422","

The 0–100 % score combines DTW distance on MFCC features, duration match, pitch and spectral centroid. An A means a close match; an F means a clear mismatch.

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Practical call-training guides, metric explanations and recording setup tips.

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