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Cleanup documentation for signal.texi, image.texi, audio.texi
author Rik <rdrider0-list@yahoo.com>
date Wed, 01 Apr 2009 17:06:45 -0700
parents fd42779a8428
children 16f53d29049f
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9071:034800482c79 9072:bd8e388043c4
23 23
24 Octave provides a few functions for dealing with audio data. An audio 24 Octave provides a few functions for dealing with audio data. An audio
25 `sample' is a single output value from an A/D converter, i.e., a small 25 `sample' is a single output value from an A/D converter, i.e., a small
26 integer number (usually 8 or 16 bits), and audio data is just a series 26 integer number (usually 8 or 16 bits), and audio data is just a series
27 of such samples. It can be characterized by three parameters: the 27 of such samples. It can be characterized by three parameters: the
28 sampling rate (measured in samples per second or Hz, e.g. 8000 or 28 sampling rate (measured in samples per second or Hz, e.g., 8000 or
29 44100), the number of bits per sample (e.g. 8 or 16), and the number of 29 44100), the number of bits per sample (e.g., 8 or 16), and the number of
30 channels (1 for mono, 2 for stereo, etc.). 30 channels (1 for mono, 2 for stereo, etc.).
31 31
32 There are many different formats for representing such data. Currently, 32 There are many different formats for representing such data. Currently,
33 only the two most popular, @emph{linear encoding} and @emph{mu-law 33 only the two most popular, @emph{linear encoding} and @emph{mu-law
34 encoding}, are supported by Octave. There is an excellent FAQ on audio 34 encoding}, are supported by Octave. There is an excellent FAQ on audio