👂 Machines That Hear · Day 4

Teach It a Sound

Remember training your webcam AI in Module 1? Now do it with ears! Teach the AI 3 different sounds — a clap, a whistle, a "shh" — from your own examples, and watch it learn to tell them apart. Same idea, new sense.

↓ let's teach it
👂 Step 1 · Teach 3 Sounds

Give it examples

Pick 3 sounds that are really different (clap 👏, whistle 😗, "shhh" 🤫). Make the sound while you tap Capture — do each one several times so the AI gets lots of examples!

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Demo sound:

🛡️ Your microphone stays on your device — nothing is uploaded.

🔮 Step 2 · Now It Listens

Make a sound — I'll guess it

Once you've taught all 3, make one of your sounds and watch the bars. The AI compares what it hears now to all your examples — you trained a real audio AI!

Teach at least 2 sounds first ☝️
🐞 Try to break it: teach two sounds that are too similar, or capture in a noisy room. Watch it get confused — clean, varied examples matter (Module 1's lesson, for ears)!
🔬 Real Model Lab

A real AI names your sounds

This is AST — a real audio classifier that learned from 2 million sound clips — running on your device. Clap, whistle, tap the desk, meow, play music... it names what it hears. Record 3 seconds and see! (~90 MB one-time download; then offline.)

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🎉 Day 4 Complete!

You trained an AI to hear — teaching it your own sounds and watching it learn to tell them apart. Ears, trained from scratch!

Day 7: How It Understands →
Next: how does the AI turn sounds into the exact right words? Meet phonemes and the language model. 🧩
AI Adventure · Machines That Hear · Day 4 — made for young inventors 🚀