Wiki » History » Version 10

Chris Cannam, 2013-05-17 10:01 PM

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h1. Wiki
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h2. The method
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 * The method to be implemented is that from "Anssi's Constant-Q Toolbox page":http://www.eecs.qmul.ac.uk/~anssik/cqt/.
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 * The MATLAB toolbox reference implementation is "here":/projects/constant-q-toolbox.
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 * 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.
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*Any pointers to* other existing high-quality C++ constant-Q implementations?
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*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?
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*What other modern methods* exist in C++?
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h2. What we want it for
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The immediate purpose 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.