Practice Pronunciation Online Free: Match the Native Waveform
Most pronunciation apps tell you "good" or "try again" with no explanation. The new DictatorFlow Pronunciation Practice game shows you exactly where your speech diverges from a native-speed target, bar by bar, while you are still speaking.
How it works
Pick a language and a phrase. The target waveform renders in gray. Hold the speak button, wait through a short three-count run-up, and speak along as the cursor sweeps the waveform. Your amplitude envelope draws over the target in real time: green bars where your rhythm matches, orange where you drift, red where you miss.
When you release, you get a 0-100 score built from two components: shape (how well your stress pattern correlates with the native envelope) and timing (whether you took roughly the same time to say it). Best scores are saved per phrase, so there is always a number to beat.
Listeners parse prosody before they parse individual sounds. If your syllable timing and stress are right, small vowel errors barely register. If the rhythm is wrong, perfect phonemes still sound foreign. Matching a waveform trains exactly that: cadence, stress, and pacing.
Ten languages, slow mode included
The game ships with Spanish, French, German, Italian, Portuguese, Japanese, Korean, Mandarin, Russian, and Hindi. Every phrase has a native-speed clip and a slow version, plus romanization for non-Latin scripts. Start slow, copy the shape, then chase green at full speed.
It runs entirely in your browser using the same audio pipeline that powers DictatorFlow dictation. Nothing is uploaded; the waveform analysis happens locally. Try it now, then test your ear with Guess the Language.