How I built a browser-based Chinese tone trainer with pitch-curve scoring

Chinese tones are hard to learn because feedback is hard to get. Most tools give you a model recording and ask you to imitate it. Very few tell you what your pitch actually did. I wanted a free browser tool that records one syllable, extracts the pitch contour, and draws it on top of the target tone. No app, no signup, and no audio upload. This is... Weiterlesen: How I built a browser-based Chinese tone trainer with pitch-curve sco…