4 ms·
Very nice graph, does anyone know which tool to generate such a graph?
by hamxiaoz 14y ago
Very nice graph, does anyone know which tool to generate such a graph?
- barakm 14y agoThe graph is a spectrogram: http://en.wikipedia.org/wiki/Spectrogram http://en.wikipedia.org/wiki/Spectrogram You've probably seen one before in relation to music. However, since we're dealing with computer-generated tones here, the spectrogram looks very very sparse (few overtones). You can see patterns in music as well, just not as clearly (because there's a lot more going on). If you'd like to make your own, consider looking into GNU Octave (http://www.gnu.org/software/octave/ http://www.gnu.org/software/octave/) or possibly Scilab, both of which are free. EDIT: I might add that Audacity can easily view the spectogram of a sound file, but if you want to manipulate the signal programatically (filters and so on; signal processing is a great subject), try the above.
- aw3c2 14y agohttp://www.sonicvisualiser.org/ http://www.sonicvisualiser.org/ Or with sox.
- nitrogen 14y agoThose of us who have been using Linux long enough to have written or used visualizer plugins for XMMS had the joy of becoming familiar with the Fast Fourier Transform.