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      The Spectrograph application performs Fast Fourier Transform
      on audio input (from file or microphone) and
      draws its spectrogram (in real time).

      Copyright (C) 2015  Lukáš Ondráček <ondracek.lukas@gmail.com>

      This program is free software: you can redistribute it and/or modify
      it under the terms of the GNU General Public License version 3
      as published by the Free Software Foundation.

      This program is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU General Public License for more details.

      You should have received a copy of the GNU General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.


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Dependencies:
  OpenGL, Freeglut 3.0
  PulseAudio, libav-tools


The application itself expects a binary stream of floats of audio samples
on standard input, therefore it is recommended to run the wrapper scripts
spectrograph-mic (for real-time input audio processing)
and spectrograph-file (for audio file processing).

Simple usage:
  spectrograph-file --file file.mp3
  spectrograph-mic

For more options run:
  spectrograph -?
  spectrograph-file -?
  spectrograph-mic -?


The interface (including options and wrappers) will change in later versions.


See:
  VERSION for current version of the application
  COPYING for full text of GNU General Public Licence version 3

Other information can be found on my web page
  http://ondracek-lukas.hys.cz/projects .


If you want to support the development of this application,
you can send a donation to my PayPal account <ondracek.lukas@gmail.com>.