Sound, Before The Synth
A synth makes electricity that pretends to be sound.
A synth doesn't record anything. It pretends to be air.
// WHAT IT DOES
Before any synth makes sense, hold this picture in your head: a sound is just air being pushed back and forth. Your eardrum is a tiny trampoline that wobbles with that air, and your brain calls the wobble 'sound'.
A synthesiser does not capture air the way a microphone does. It generates a tiny electric current that wiggles back and forth — and that wiggle, sent to a speaker, becomes the air movement your ear feels.
Every knob on a synth changes the wiggle. Pitch knobs change how fast it wiggles. Volume knobs change how big the wiggle is. Filter knobs change which frequencies make it through.
- • If you know the synth is just shaping a voltage wiggle, no preset is mysterious anymore.
- • It explains why subs need a big speaker (huge slow wiggles) and why hi-hats sit in tweeters (tiny fast wiggles).
- • You stop chasing 'better sounds' and start asking 'what should this wiggle look like?'
// SEE & HEAR IT
▸ Two oscillators blend to one waveform. Detune fattens by making them slightly out of tune.
▸ HOW IT WORKS
- • Pitch responds instantly to oscillator frequency.
- • Loudness scales with amp level, not pitch.
- • Filter changes without changing pitch.
▸ WALKTHROUGH (4 steps)
- 1. DO: Put the synth on a track and play a single note.▸ LISTEN: That sustained tone is one voltage wiggle being held at one rate.
- 2. DO: Move the pitch slider while the note is held.▸ LISTEN: The wiggle changes speed — the perceived pitch follows.
- 3. DO: Move the volume slider.▸ LISTEN: Same wiggle, bigger or smaller swings — only loudness changes.
- 4. DO: Pull the down slowly.▸ LISTEN: Frequencies disappear from the top. Same , different colour.
▸ COMMON MISTAKES
- ✗ Thinking presets are 'finished sounds' instead of starting points.
- ✗ Looking for a 'good preset' instead of asking what the part needs.
- ✗ Confusing pitch and volume changes when twisting unknown knobs.