import sys import numpy as np from py_sonicvisualiser import SVEnv wavfname = sys.argv[1] outsvenvfname = sys.argv[2] # init a sonic visualiser environment file corresponding # to the analysis of media wavfname sve = SVEnv(wavfname) # append a spectrogram view specview = sve.add_spectrogram() # append a continuous annotation layer corresponding to a sinusoidal signal # on the spectrogram view previously defined x = np.array(range(10000, 20000, 5)) / 1000. sve.add_continuous_annotations(x, 1 + 3 * np.sin(2 * x), view=specview) # append a labelled interval annotation layer on a new view intvtime = [1., 5., 21.5] intvdur = [3., 11., 5.] intvlabel = ['myintv1', 'mywonderfull intv2', 'intv3'] intvval = [0, 1, 5] sve.add_interval_annotations(intvtime,intvdur,intvlabel,intvval) # save the environment to a sonic visualiser environment file sve.save(outsvenvfname)
