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Learn sound design — from zero to bass hero.
No signup. No downloads. Just you and pure synthesis.
Every sound starts with a basic waveform. These are the building blocks of synthesis. Click each one to hear AND see the difference! The sine wave is pure and smooth, the square wave sounds hollow, the sawtooth is bright and buzzy, and the triangle sits somewhere in between.
Frequency determines pitch. Low frequency = deep bass, high frequency = high notes. Musical notes have specific frequencies — A3 is 220 Hz, A4 is 440 Hz. Drag the knob up/down to explore the full range from sub-bass to treble.
The sawtooth wave is the king of bass sounds. It's rich in harmonics, which gives it that thick, buzzy character. Use the low-pass filter to tame the brightness — turn the cutoff down for a deep, rumbling sub-bass, or crank it up for an aggressive, in-your-face bass. This is how producers build those massive basses you hear in electronic music!
Filters remove frequencies from your sound. A low-pass filter lets the low frequencies through and cuts the highs — perfect for shaping bass. A high-pass filter does the opposite, great for removing muddiness. Band-pass lets only a narrow band through, like a wah-wah effect.
Layer two oscillators for richer, fuller sounds. When you detune the second oscillator slightly, the two waves drift in and out of phase, creating that classic supersaw effect. This is the secret behind those huge trance leads and modern bass sounds!
ADSR controls how your sound evolves over time. Attack = how fast it reaches full volume. Decay = how quickly it drops to the sustain level. Sustain = the steady-state volume while holding a key. Release = how long it takes to fade out after letting go. Fast attack = punchy bass hits. Slow attack = smooth pad swells.
Use headphones for the best experience. Works on all modern browsers.