The mark is only the label
A mark tells you which tone category to aim for. It does not show whether your spoken attempt stayed level, rose late, dipped too soon, or drifted away from the reference shape.
Why It Feels Different
English uses pitch around words. Vietnamese uses tone inside words.
English speakers already use pitch constantly: to ask a question, show surprise, soften a phrase, or add emphasis. Vietnamese asks for something narrower. The tone movement belongs to the syllable itself, so changing it can change what the listener hears as the word.
Recognition is not production
You can recognize tones in a lesson and still miss them when speaking. The mouth knows the spelling, but the pitch movement has not become stable yet.
Green checks are not enough
A broad pronunciation check may tell you to try again. Tone practice needs the next useful cue: what changed in the attempt, and what should you retry now?
Practice Model
What focused tone practice should do.
A useful practice loop should keep the learner calm, honest, and focused. Đúng Chưa? is built around a small loop instead of a broad course.
| Step | Why it matters |
|---|---|
| Hear a reference target | Start with a clear spoken example before attempting the phrase. |
| Record in a quiet room | Unclear audio can hide the real tone shape. Bad audio should not receive fake feedback. |
| Run a recording check | The app should first decide whether the attempt is clear enough for tone feedback. |
| Give one correction | One cue is easier to retry than a wall of comments. |
| Retry the same phrase | Repetition makes the tone shape more stable before moving on. |
Where Đúng Chưa? Fits
A companion for the moment after you know the word.
Use vocabulary apps, teachers, classes, and phrase decks to learn what to say. Use focused tone practice when the word is already familiar but your spoken attempt still does not land.
Not a broad course
Đúng Chưa? does not replace vocabulary, grammar, or conversation practice. It narrows down to pronunciation feedback for the spoken tone shape.
Not a shame loop
The product should help you retry without embarrassment. If the recording is not clear enough, it should say so instead of pretending to judge you.
Pre-launch waitlist
The early version is waitlist-based and scoped to controlled practice. The safest first step is the no-mic preview on the homepage.