Learning Mission

Make Your Own Sound Wave

Choose a waveform, change its frequency and amplitude, inspect the shape, and optionally listen to the tone.

The tool opens silently. Keep your device volume low before starting sound.

440 Hz
Lower pitchHigher pitch
50%
Smaller waveLarger wave

Hearing safety: Amplitude changes the waveform display strongly, but the audio output is capped at a quiet level.

Quick experiments

Waveform display

Sound off
Sine wave preview
Wave typeSine
Period2.27 ms
Cycles shown4.4
Pitch rangeMiddle
Sine waveA smooth repeating curve with one pure fundamental frequency.

Compare the four wave shapes

The shapes have the same frequency and amplitude, but their corners and slopes differ.