Wiki » History » Version 12
Chris Cannam, 2013-05-17 10:08 PM
| 1 | 1 | Chris Cannam | h1. Wiki |
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| 2 | 1 | Chris Cannam | |
| 3 | 10 | Chris Cannam | h2. The method |
| 4 | 10 | Chris Cannam | |
| 5 | 1 | Chris Cannam | * The method to be implemented is that from "Anssi's Constant-Q Toolbox page":http://www.eecs.qmul.ac.uk/~anssik/cqt/. |
| 6 | 1 | Chris Cannam | |
| 7 | 1 | Chris Cannam | * The MATLAB toolbox reference implementation is "here":/projects/constant-q-toolbox. |
| 8 | 1 | Chris Cannam | |
| 9 | 11 | Chris Cannam | * The "QM-DSP":/projects/qm-dsp library contains a Constant-Q implementation; there is a Vamp plugin of it in the "QM Vamp Plugins":/projects/qm-vamp-plugins set. I believe it is based on the method of Brown and Puckette. Our version isn't very good. Among other things, we should aim to produce an improved plugin. |
| 10 | 4 | Chris Cannam | |
| 11 | 8 | Chris Cannam | *Has anyone already made one* corresponding directly to the Schörkhuber/Klapuri method? We don't want to duplicate effort. And if someone has, why don't I know about it? -- can we do anything to help make it more universally known? |
| 12 | 9 | Chris Cannam | |
| 13 | 9 | Chris Cannam | *What other modern methods* exist in C++? |
| 14 | 10 | Chris Cannam | |
| 15 | 10 | Chris Cannam | h2. What we want it for |
| 16 | 1 | Chris Cannam | |
| 17 | 11 | Chris Cannam | The immediate requirement is as the first step in implementing Emmanouil Benetos and Simon Dixon's "music transcription":http://www.mitpressjournals.org/doi/abs/10.1162/COMJ_a_00146 method for a Vamp plugin. |
| 18 | 11 | Chris Cannam | |
| 19 | 11 | Chris Cannam | But the reason we aren't using the QM-DSP constant-Q implementation is that it simply isn't good enough, and that means it isn't really good enough for the rest of the world either. We should make a better one to improve upon the existing QM Vamp Plugin as well. |