sdh\music.mat ...\sdh_addframe.m ...\sdh_calculate.m ...\sdh_colormap.m ...\sdh_demo1.m ...\sdh_demo2.m ...\sdh_demo3.m ...\sdh_gmm_em.m ...\sdh_gmm_em_mu.m ...\sdh_gmm_init.m ...\sdh_gmm_pdf.m ...\sdh_visualize.m ...\sdh_visualize_kmeans.m sdh