Raster Scanning

Image/Sound Examples

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Image Sonification

Basic waveforms

Sawtooth wave

[tif] [wav]
Sinusoidal wave

[tif] [wav]
Square wave

[tif] [wav]

Pulse modulations

Pulse frequency modulation (1)

[tif] [wav]
Pulse frequency modulation (2)

[tif] [wav]
Pulse width modulation

[tif] [wav]

Texture comparison

(1)

[tif] [wav]
(2)

[tif] [wav]
(3)

[tif] [wav]
(4)

[tif] [wav]

Effects of visual filters

Original

[tif] [wav]
Patchwork

[tif] [wav]
Grain

[tif] [wav]

Sound Visualization

Violin pitch

Sound: violin.wav (obtained from the Musical Instrument Samples of Electronic Music Studios, University of Iowa)
width: 169 [pixels]

[tif]
170 [pixels]

[tif]
171 [pixels]

[tif]

FM: fm, with I = 1

1 [Hz]

[wav] [tif]
2 [Hz]

[wav] [tif]
5 [Hz]

[wav] [tif]
10 [Hz]

[wav] [tif]
20 [Hz]

[wav] [tif]
50 [Hz]

[wav] [tif]

FM: I, with fm = 1 [Hz]

2

[wav] [tif]
5

[wav] [tif]
10

[wav] [tif]
20

[wav] [tif]
30

[wav] [tif]
40

[wav] [tif]

Karplus-Strong Model

First-order FIR loop filters

(Images are scaled down to 60% for display purpose.)
H(z) = 0.9 + 0.1 z-1

[wav] [tif]
H(z) = 0.5 + 0.5 z-1

[wav] [tif]
H(z) = 0.1 + 0.9 z-1

[wav] [tif]

Second-order FIR loop filters

(Images are scaled down to 60% for display purpose.)
H(z) = 0.05 + 0.9 z-1 + 0.05 z-2

[wav] [tif]
H(z) = 1/3 + (1/3) z-1 + (1/3) z-2

[wav] [tif]
H(z) = 0.45 + 0.1 z-1 + 0.45 z-2

[wav] [tif]

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Copyright © 2006 Woon Seung Yeo, all rights reserved.
woony AT ccrma DOT stanford DOT edu
Last updated: Sun, 26 Mar 2006 04:00:15 -0800.