Digital Audio & Recording
📋 What it is
Digital audio turns sound waves into numbers a computer can store, edit and play back.
🗣️ Coach says
To put sound on a computer, a microphone catches the VIBRATION and the computer measures it thousands of times a second, storing those measurements as NUMBERS. More measurements = higher quality. Once it's numbers, you can edit, layer and replay it perfectly — that's digital audio.
🧠 Memory hook
Digital audio = sound turned into NUMBERS (measured thousands of times a second) a computer can edit.
😂 Giggle
Why was the wind chime sound always invited to parties?
It knew how to set the tone!
😲 Whoa!
A music file measures the sound wave about 44,000 times every second — that's why it can play back so smoothly your ear hears no gaps.
✅ Quick check: How does a computer store a sound?
Say your answer out loud first — then reveal.
It measures the sound wave many thousands of times a second and stores those measurements as numbers (digital audio).
Digital audio samples the wave into numeric values a computer can store and edit.
🧪 Try it! (2 minutes)
Record a short voice memo on a device, then play it back — you just made digital audio from a vibration.