Here we see a log-frequency spectrogram and a waveform of part of Bob Dylan's "Don't Think Twice, It's All Right". The Russian translation is included in the standard program and should be used automatically if your locale is set appropriately. Sonic Visualiser 1.0 in Russian – translation thanks to the hard work of Alexandre Prokoudine. The spectrogram pane below it shows estimated instantaneous frequencies for peak FFT bins. The waveform pane at the top is overlaid with a spectral centroid calculation (the coloured shading), the outputs of two note onset detection Vamp plugins (red and black vertical lines – neither of them seems to work very well on this sort of music) and the onset likelihood function from a third onset detection plugin (the blue curve). (In fact the whole final movement is loaded and may be scrolled through – see the green overview at the bottom of the window.) Sonic Visualiser 1.0 showing about a minute of the final movement of Mahler's 9th symphony, performed by the Czech Philharmonic under Vaclav Neumann. The notes from the tracker are played using a piano sample, configured in the plugin dialog visible. Overlaid on the spectrogram is a note layer, showing the output of a note-tracker Vamp plugin that is being evaluated. (The music is "After the Pain" by Carlos Pino.) Sonic Visualiser 1.0 showing a waveform pane and a melodic range spectrogram pane. Sonic Visualiser 3.0, running on Windows, showing a waveform, a melodic range spectrogram, and a key analysis carried out by a Vamp plugin. It was developed at the Centre for Digital Music at Queen Mary, University of London. Sonic Visualiser is Free Software, distributed under the GNU General Public License (v2 or later) and available for Linux, OS/X, and Windows. We hope Sonic Visualiser will be of particular interest to musicologists, archivists, signal-processing researchers and anyone else looking for a friendly way to take a look at what lies inside the audio file. The aim of Sonic Visualiser is to be the first program you reach for when want to study a musical recording rather than simply listen to it. I tend to think that you can't replace keyboards with guitar for live playing, but for recording midi it can be usable solution.Sonic Visualiser is an application for viewing and analysing the contents of music audio files. (And fixinging timing caused by bad player) I've used it for recording something in midi, and after it, removing extra notes in DAW. I have handled it with adjusting patch to have longer attack, so that fast wrong note will not be that loud. Player with perfect playing skills might not get those. For example, this is live recording, GR-33 playing strings, and there is some wrong notes here and there, for example in 13s. For faster playing (or with lousy player like me) there will be sometimes wrong notes added. Roland guitar synths are fine for creating something to backup your guitar playing, or playing something slow & smooth. Recording midi from it, and fixing timings on DAW should work. I have seen videos where it is played by proper player, and it sounds nice, but at least my hammer-on & strumming timing accuracy is too bad for playing it live. User tavasti would probably tell you far more - he's got both a Roland GR-33 and a You Rock Guitar The question was already discussed a few times in the past: You will probably need dedicated hardware like a Roland GR-33 to get something really playable. I'm also interested in the matter, but I don't think a software only solution can currently provide good enough performance and accuracy (at least in the current state of technology).
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