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Diffstat (limited to 'examples/timestretch.py')
| -rw-r--r-- | examples/timestretch.py | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/examples/timestretch.py b/examples/timestretch.py deleted file mode 100644 index af9cfb4..0000000 --- a/examples/timestretch.py +++ /dev/null @@ -1,43 +0,0 @@ -# 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 -from simpl.fx import time_stretch -from scipy.io.wavfile import read, write -import numpy as np - -input_file = '../tests/audio/flute.wav' -output_file = 'flute_2x.wav' -time_stretch_factor = 2 - -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] - -print "Time stretching", input_file, "by a factor of", time_stretch_factor -pd = simpl.SndObjPeakDetection() -pd.max_peaks = 100 -peaks = pd.find_peaks(audio_in) -pt = simpl.SndObjPartialTracking() -pt.max_partials = 10 -partials = pt.find_partials(peaks) -partials = time_stretch(partials, time_stretch_factor) -sndobj_synth = simpl.SndObjSynthesis() -audio_out = sndobj_synth.synth(partials) -audio_out = np.asarray(audio_out * 32768, np.int16) -print "Writing output to", output_file -write(output_file, 44100, audio_out) - |