声调 · shēngdiào · Tones
Hear the target, say it, and watch your pitch against the curve. An app can show you the shape — Chen Laoshi fixes it in the moment. Flag anything that won't sit right and she hears it before class.
Third tone · dip ˇ
mǎ
horse
The doubtful 'हम्म…' — drop low, then lift.
Same syllable, four meanings. Tone is meaning.
From your lessons.
What the algorithm can't do
“It cannot sit across from you, hear you fumble a tone, and fix it in the moment.” Every flag lands in the Studio queue with your clip, ordered by who's stuck — so the live class starts where the app stopped.