One contrast · one cue · about 5 minutes

Hear it. Say it. See your pitch.

Northern (Hanoi) first. Hear the reference, then record. Your pitch is drawn over the reference after you stop. A weak signal is not a score. Ngã and nặng never get a green check. No checkout.

LOCK

Lock dialect before the mic

Northern: 6 spoken tones. ngã has a break. nặng has a final catch. Pitch is not enough.

Dialect

Voice

Northern mả (hỏi, dip) is not mã (ngã, broken).

This session

Northern (Hanoi). One contrast, about five minutes.

Contrast drills

This page is one contrast for about five minutes. Which tone did you hear? is the listening game. /practice/sac-vs-nga uses the same pitch check as this page. Other pair URLs stay conditions-only recording checks — not the DSP judge; they do not pass or fail tone.

Your memory — what this device remembers. Nothing leaves it.