Here's the trick that connects everything: machines turn sound into a picture called a spectrogram — time goes across, pitch goes up, and brightness shows how loud. Then they use the exact same vision skills from Module 1 to understand it! 🤯
Tap the keys. Each note plays a sound and paints a glowing line on the spectrogram — low notes near the bottom, high notes near the top. Play a few and watch the picture scroll by!
Turn on your mic and try: hum from low to high (the bright line slides up), whistle (one clean line), or talk (messy stacked bands — that's what makes speech hard!).
Now you're the AI! Look at each spectrogram and pick what made it. Get all 3 right!
You discovered the master trick: sound becomes a picture (a spectrogram), and then AI uses the vision skills from Module 1 to read it. Ears and eyes, connected!