Fourier Transform Visualizer

Compose signals from sine waves and visualize their frequency spectrum

Signal Controls

Wave 1

Frequency (Hz)

4 Hz

Amplitude

5.0

Phase (°)

0°

Wave 2

Frequency (Hz)

8 Hz

Amplitude

3.0

Phase (°)

90°

Wave 3

Frequency (Hz)

12 Hz

Amplitude

0.0

Phase (°)

0°

Wave 4

Frequency (Hz)

16 Hz

Amplitude

0.0

Phase (°)

0°

Samples (N)

256

Add Gaussian Noise

Noise Level (σ)

0.5

💡 Combine up to 4 sine waves to create complex signals

Time Domain Signal

Magnitude Spectrum |X(f)|

Phase Spectrum ∠X(f)

Signal Information

Sampling Rate (Fs) -

Nyquist Frequency -

Frequency Resolution (Δf) -

Signal Duration -

Total Power -

RMS Amplitude -