Lab · transforms
Fourier composer
Tune two components and watch their time- and frequency-domain descriptions change together.
Interactive experiment
Harmonic composer
How do amplitude, frequency and phase appear in a discrete spectrum?
The waveform is the sample-wise sum; its vertical scale is automatic and labelled. The spectrum view shows 0–16 Hz of the available 0–32 Hz band. Bars use the left amplitude scale; phase points use the right −π to +π radian scale. Phase is omitted below amplitude 0.03.