waveFile='soo.wav';
opt=pitchTrackBasic('defaultOpt');
pitch1=pitchTrackBasic(waveFile, opt);
opt.frame2pitchOpt.useParabolicFit=1;
pitch2=pitchTrackBasic(waveFile, opt);
subplot(211); plot(1:length(pitch1), pitch1, 1:length(pitch2), pitch2);
legend('Original pitch', 'Finetuned pitch with parabolic fit');
subplot(212); plot(1:length(pitch1), pitch1-pitch2);
title('Pitch difference');