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# Copyright (c) 2009 John Glover, National University of Ireland, Maynooth
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import simpl
import simpl.plot
from scipy.io.wavfile import read
input_file = '../tests/audio/flute.wav'
audio_in_data = read(input_file)
audio_in = simpl.asarray(audio_in_data[1]) / 32768.0 # values between -1 and 1
sample_rate = audio_in_data[0]
# take just the first few frames
audio = audio_in[0:4096]
# Peak detection and partial tracking using SMS
pd = simpl.SMSPeakDetection()
pd.max_peaks = 20
pd.hop_size = 147
peaks = pd.find_peaks(audio)
pt = simpl.MQPartialTracking()
pt.max_partials = 20
partials = pt.find_partials(peaks)
simpl.plot.plot_partials(partials)
simpl.plot.show()
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