This directory contains compatibility tests for librosa's core features.

The MATLAB script makeTestData.m generates input/output examples under the data/ directory.

After generating the test data, run nosetests -v to perform tests and verify the outputs.

The data files for numerical equivalence tests are generated by the makeTestData matlab program. This relies on a variety of matlab functions which can be downloaded from the following URLs:

• http://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/
• http://www.ee.columbia.edu/~dpwe/resources/matlab/chroma-ansyn/

The following RASTAMAT functions are required to run the makeTestData.m matlab program:

• mel2hz.m http://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/mel2hz.m
• hz2mel.m http://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/hz2mel.m
• fft2melmx.m http://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/fft2melmx.m

STFT/ISTFT are compared to those available here:

• stft.m http://www.ee.columbia.edu/ln/rosa/matlab/pvoc/stft.m
• istft.m http://www.ee.columbia.edu/ln/rosa/matlab/pvoc/istft.m

Beat tracking implementations are provided here:

• tempo2.m http://labrosa.ee.columbia.edu/projects/beattrack/tempo2.m
• beat2.m http://labrosa.ee.columbia.edu/projects/beattrack/beat2.m

The chroma-ansyn package provides the remaining functions:

• hz2octs.m http://www.ee.columbia.edu/~dpwe/resources/matlab/chroma-ansyn/hz2octs.m
• ifgram.m http://www.ee.columbia.edu/~dpwe/resources/matlab/chroma-ansyn/ifgram.m
• fft2chromamx.m http://www.ee.columbia.edu/~dpwe/resources/matlab/chroma-ansyn/fft2chromamx.m