1SNDFILE-SPECTROGRAM(1)      General Commands Manual     SNDFILE-SPECTROGRAM(1)
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NAME

6       sndfile-spectrogram - generate a spectrogram from an input sound file
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SYNOPSIS

9       sndfile-spectrogram  [options]  <sound  file>  <img width> <img height>
10       <png name>
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DESCRIPTION

14       sndfile-spectrogram reads a single channel sound file and  generates  a
15       spectrogram  which is written to a PNG file with specified image height
16       and width.
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18       The optional parameters allow the user to specify the dynamic range  of
19       the  spectrogram plot and/or to disable the drawing of borders, scales,
20       heat map and title.  Run "sndfile-spectrogram --help" for more informa‐
21       tion.
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23       The  input file is read using libsndfile (http://www.mega-nerd.com/lib‐
24       sndfile/), the spectrogram is calculated with the help of  libfftw  and
25       the  spectrogram  is rendered and written to the output file using lib‐
26       cairo.
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AUTHOR

30       This manual page was  written  by  Erik  de  Castro  Lopo  <erikd@mega-
31       nerd.com>.
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36                               December 14, 2009        SNDFILE-SPECTROGRAM(1)