Phase Interference & Spectrum Lab

Observe constructive/destructive interference in the time and frequency domains.

Wave A Wave B

Only A Balance (Dbl-click to reset) Only B

Phase Shift (Signal B)

0°

90°

180°

270°

360°

Snaps to 90°, 180°, 270°

Frequency (Hz)

110Hz 220Hz 880Hz

Master Volume

Spectrum Guide

Watch the Analyzer below. At 180°, notice how the fundamental frequency spike disappears (destructive interference) or "comb filtering" occurs in complex waves.

SIGNAL A & B (TIME DOMAIN) Phase: 0°

SUMMED OUTPUT WAVEFORM

REAL-TIME SPECTRUM ANALYZER (FREQUENCY DOMAIN)