The Spectrograph application performs FFT on audio input drawing its spectrogram.
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ondracek-lukas/spectrograph
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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/>. ################################################################################ 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>.
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