Chris@24: 
Chris@24: This directory contains some example data calculated using the MATLAB
Chris@24: Chroma Toolbox.
Chris@24: 
Chris@24: The file ylsf-30sec-tipic-pitch.csv contains our input data: 88-bin
Chris@24: pitch features from a 30-second clip, at a rate of 10 per second so
Chris@24: 300 features total. These came from a test version of the Tipic
Chris@24: plugin. They do not match the pitch features produced by the Chroma
Chris@24: Toolbox, because Tipic uses a causal filterbank rather than the
Chris@24: zero-phase forward-backward filter of the Chroma Toolbox.
Chris@24: 
Chris@24: The remaining files contain the results of processing the
Chris@24: ylsf-30sec-tipic-pitch.csv data using the pitch_to_* functions of the
Chris@24: Chroma Toolbox, using MATLAB commands along the lines of
Chris@24: 
Chris@24: >> pitch = csvread('ylsf-30sec-tipic-pitch.csv');
Chris@24: >> chroma = pitch_to_chroma([zeros(20,300); pitch'; zeros(12,300)]);
Chris@24: >> csvwrite('ylsf-30sec-chroma-from-tipic-pitch-defaults.csv', chroma');
Chris@24: 
Chris@24: (The zeros are there because the Toolbox functions expect 120-bin
Chris@24: pitch features while Tipic only emits 88 bins.)
Chris@24: 
Chris@24: The files here are:
Chris@24: 
Chris@24:  * ylsf-30sec-chroma-from-tipic-pitch-defaults.csv - CP chroma features,
Chris@24:    default parameters
Chris@24: 
Chris@24:  * ylsf-30sec-clp-from-tipic-pitch-defaults.csv - CLP log-compressed
Chris@24:    chroma features, default parameters (apart from log compression)
Chris@24: 
Chris@24:  * ylsf-30sec-cens-from-tipic-pitch.csv - CENS features, default parameters
Chris@24: 
Chris@24:  * ylsf-30sec-crp-from-tipic-pitch-defaults.csv - CRP features, default
Chris@24:    parameters
Chris@24: 
Chris@24:  * ylsf-30sec-crp-from-tipic-pitch-downsample.csv - CRP features, 10x
Chris@24:    downsampling with 41-point window enabled
Chris@24: 
Chris@24: The proposition that these are intended to help test is: If Tipic
Chris@24: produces the pitch features found in ylsf-30sec-tipic-pitch.csv, and
Chris@24: if we assume the MATLAB implementations are correct, then Tipic should
Chris@25: also produce chroma features matching those in these files. (Up to
Chris@25: rounding error based on the limited precision with which the original
Chris@25: pitch values were written out to CSV.)
Chris@24: