🔊 Doppler Effect Simulator

Simulate frequency shifts and wavefront compression for acoustic sound waves and relativistic light redshift ($z$). Features real-time wavefront propagation canvas and Web Audio tone simulation.

Emitted Freq ($f_0$) Hz

Source Velocity ($v_s$) m/s (+ toward observer)

Wave Medium

Observer Velocity ($v_o$) m/s (+ toward source)

Blue = Compressed wavefronts (Approaching) | Red = Stretched (Receding)

Observed Frequency ($f'$)

548.8 Hz

Mach Number ($M$)

0.198 M

Pitch Shift Ratio

+24.7% (+3.8 st)

Redshift Parameter ($z$)

-0.198 (Blueshift)