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Lesson 2 of 3

Interference

Goal: see how waves combine in space.

Exercises

Waveforms can also combine differently depending on their relationship in space. Watch this visualization of a sine waveform as seen from above. Darker areas represent higher amplitude.
Play the second sine wave and change its direction between 180 and 0 degrees. Notice how the resulting waveform changes for someone standing in the middle.
Try changing waveform shapes and angles to see how interference patterns vary.
Most sound sources emit pressure waves radially, rather than as parallel lines. Under Layers, change Wave geometry to Radial; use Layer arrangement separately to position the source origins.
Try different methods of representing the interference. Change the blend mode to screen. Change the visualization to Crest.

Visualization

Input

Gain

dB

Cutoff

Hz

Direction

°

Analysis

Spectrum

Axis

FFT window

2048

Wave geometry

Layer arrangement

Line

Blend

Multiply

Global rotation

0

X spacing

120

Y spacing

0

Layer source

Exposure

25

Gate

0

Smoothing

0.00

Persistence

0.00

Diffusion

0.00

Oscillator count

1

Frequency

Hz

Level

dB

Cutoff

Hz

Direction

°

Phase

°

Waveform

sine

Band