Mandarin pronunciation guide maker
Physical mouth retraining, not more audio drills
Mandarin pronunciation guide maker launched on July 30, 2026 with 2 votes. The site was not reachable when checked in September 2026.
What it does
I was stuck at a plateau with mandarin. Knew pinyin, could nail tones — but natives kept switching to english. Turns out my mouth was defaulting to english shapes. So I built a diagnostic system to identify which habits were breaking my pronunciation and retrain them with physical mouth placement. Includes a 90-day plan. For learners who know the theory but can't sound natural yet.
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Built this because tones are killing my spoken Mandarin and I can't reliably hear my own mistakes. It's a 9M Conformer-CTC model trained on ~300h (AISHELL + Primewords), quantized to INT8 (11 MB), runs 100% in-browser via ONNX Runtime Web. Grades per-syllable pronunciation + tones with Viterbi forced alignment. Try it here: https://simedw.com/projects/ear/
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