Wiki¶

The method¶

• The method to be implemented is that from Anssi's Constant-Q Toolbox page.

• The MATLAB toolbox reference implementation is here.

• The QM DSP library contains a Constant-Q implementation; there is a Vamp plugin of it in the 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.

Any pointers to other existing high-quality C++ constant-Q implementations?

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?

What other modern methods exist in C++?

What we want it for¶

The immediate purpose is as the first step in implementing Emmanouil Benetos and Simon Dixon's music transcription method for a Vamp plugin.