Explore pitch with waves and sound
Inspect frequency and period. A short sine tone plays only when requested.
Diagram and inputs ↓Choose another visualization (19 topics)
Start with a reference or example
Get a sense of the value, then inspect the diagram or motion.
| Reference / example | Value | What it means | Use |
|---|---|---|---|
| 220 Hz sine tone | 220 Hz | Period 4.545 ms | |
| 440 Hz sine tone | 440 Hz | Period 2.273 ms | |
| 880 Hz sine tone | 880 Hz | Period 1.136 ms |
Formula examples; see the scope alongside each view.
Applies to condition A. Then press Play or Reveal.
Conditions
20–20000 Hz. Tone: low gain, one second. Does not compare sound pressure, loudness or device response.
Visual preview
Ready2D · waveform over time
For more than ten cycles, shorten the time window. Trace reveal is illustrative.
How to read this view
Equation and interpretation
T=1/f. The trace is illustrative pressure versus time, not sound moving up and down.