Image:Pcm.svg

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Pcm.svg‎ (SVG file, nominally 800 × 600 pixels, file size: 17 KB)

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[edit] Summary

An example of 4-bit pulse code modulation showing quantization and sampling of a signal (red).

Generated by myself using Inkscape to heavily modify gnuplot output.

This vector image was created with gnuplot.

[edit] Details

Generated curve and scale with the following gnuplot script:

set terminal svg size 1600 1200 fname "Times New Roman" fsize 48 enhanced set output "pcm.svg"

set samples 1000

set nokey
set grid ytics lw 4
set xtics 32
set mxtics 32
set ytics 1
set noxzeroaxis
set noyzeroaxis
set noborder

set xrange [0:32]
set yrange [0:15]

plot 7.5*sin(2*pi*x/32) + 7.5 lw 4

Floor function was then performed by hand in Inkscape, along with various other image quality tweaks.

[edit] Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current15:13, 10 May 2006800×600 (17 KB)Ktims (Okay removed the border, it looks like crap.)
15:08, 10 May 2006800×600 (17 KB)Ktims (Fixed transparency a bit more, added border.)
13:12, 10 May 2006800×600 (21 KB)Ktims (Shrunk due to Wiki's crappy rasterizing of SVGs and tweaked to work with transparency.)
11:26, 15 March 20061,600×1,200 (23 KB)Ktims (An example of 4-bit pulse code modulation showing quantization and sampling.)
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