Hold your phone against your neck and murmur. Undertone measures the pitch your voice actually produced and vibrates the correction.
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Step 1 of 3
Tone languages first — they are where the perceptual gap is widest.
Step 2 of 3
This sets how tightly the tolerance bands close as you improve.
Step 3 of 3
Hold the phone flat against the side of your neck, just beside the Adam's apple. Then hum a steady mmm for three seconds.
Tap to begin
Today's loop · 90 seconds
Eight items, selected from your highest-error contrast.
Your weakest contrast
Complete a loop and this fills in from your own recordings.
Recent attempts
hemp · flax
Phone to neck · tap and murmur
Undertone is an educational training platform. It measures pronunciation accuracy for language learning and does not diagnose or treat any condition.