Difference Tone Lab

v7 · touch-safe

No drag controls. Tap −/+, hold to repeat, or type an exact value.

Target difference

220.000 Hz

Target keyboardA0–D♯10

Lower source frequency20.000 Hz

Source A

20.000 Hz

Source B

240.000 Hz

Levels1% per tap · hold to repeat

Master20%

Sources28%

Generated target12%

Nonlinear drive2.5×

Source waveform Generated-target waveform

Nonlinear source stage
Generates an actual intermodulation difference component.

Sample rate
Detected after start

Source ceiling
20,000 Hz assumed

Begin at low volume, especially with headphones.