CallVocab
Learn English from your video call captions
What it does
CallVocab turns the English calls you already sit in into English lessons. It reads the live captions your call displays and mirrors them into a panel where every word is clickable. Tap a word for its meaning and pronunciation — it's saved with the sentence it came from. Tap a line to read it in your language; 16 supported. After the call, review your words as flashcards, organized per meeting. No account, no API key, no ads. Everything stays on your machine. Google Meet and Microsoft Teams.
CallVocab (Call Vocab) is a free Chrome extension that turns Google Meet & Teams live captions into a clickable instant dictionary with 16-language translations.
Live captions become a clickable dictionary. Tap any word to see its English definition, hear native pronunciation, or translate full sentences across 15 global languages. Able to withstand or recover quickly from difficult conditions. Join your call on Google Meet or Teams and enable closed captions. CallVocab mirrors them in a clean panel. Click any word you do not understand to hear native pronunciation, read definitions, or translate lines. Words are saved together with the sentence spoken in the meeting. Review them anytime with spaced repetition. Explore live meeting captions, instant lexicon lookups, full translations, and flashcard review. English provides complete Oxford…from callvocab.com
Does the same job
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
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Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 26d ago · baselashraf81.github.io
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com