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A polyphonic music transcription Vamp plugin
License: GNU General Public License v2.0
This project forked from cannam/silvet
A polyphonic music transcription Vamp plugin
License: GNU General Public License v2.0
Silvet: Shift-Invariant Latent Variable Transcription ===================================================== A polyphonic music transcription plugin. http://code.soundsoftware.ac.uk/projects/silvet Silvet is a Vamp plugin (http://vamp-plugins.org) for automatic music transcription, using the method of "A Shift-Invariant Latent Variable Model for Automatic Music Transcription" by Emmanouil Benetos and Simon Dixon (see CITATION file). What does it do? ---------------- Silvet listens to audio recordings of music and tries to work out what notes are being played. To use Silvet, you need a Vamp plugin host such as Sonic Visualiser (http://sonicvisualiser.org). How to use the plugin will depend on the host, but in the case of Sonic Visualiser, you should load an audio file and then run Silvet Note Transcription from the Transform menu. This will add a note layer to your session with the transcription in it, which you can play back or export as a MIDI file. How good is it? --------------- It's reasonable for recordings that suit it: chamber music, solo piano, acoustic jazz, etc. But the range of music that works well is quite limited at this stage. Silvet uses a probablistic latent-variable estimation method to decompose a Constant-Q time-frequency matrix into note activations using a set of spectral templates learned from recordings of solo instruments. This means its performance is dominated by the correspondence between its instrument templates and the sounds present in the recording. The method performs quite well (70-85% of notes identified correctly) for clear recordings that contain only instruments with a good correspondence to the known templates. In these cases its performance becomes limited by the note decomposition step, clustering pitch probabilities into note events, which is still fairly simplistic. Silvet does not yet contain any vocal templates, or templates for typical rock or electronic instruments. So it will usually perform very poorly with pop and rock music, although the results can be interesting anyway. Silvet also makes no attempt to transcribe percussion. For a formal evaluation, please refer to the 2012 edition of MIREX, the Music Information Retrieval Evaluation Exchange, where the basic method implemented in Silvet formed the BD1, BD2 and BD3 submissions in the Multiple F0 Tracking task: http://www.music-ir.org/mirex/wiki/2012:Multiple_Fundamental_Frequency_Estimation_%26_Tracking_Results Also refer to later editions of MIREX (2014 and 2015) for results obtained using the Silvet plugin itself. Authors ------- The Silvet plugin code was adapted by Chris Cannam from research and a MATLAB implementation by Emmanouil Benetos. Citation, License and Use ------------------------- If you make use of this software for any public or commercial purpose, we ask you to kindly mention the authors and Queen Mary, University of London in your user-visible documentation. We're very happy to see this sort of use but would much appreciate being credited, independent of the requirements of the software license itself (see below). If you make use of this software for academic purposes, please cite: Emmanouil Benetos and Simon Dixon, "A Shift-Invariant Latent Variable Model for Automatic Music Transcription". Computer Music Journal, volume 36 no 4, 2012, pp. 81-94. (See the CITATION file for a BibTeX reference.) This plugin is Copyright 2014-2015 Queen Mary, University of London. It is distributed under the GNU General Public License: see the file COPYING for details.
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