From ce65c30264be9683dd3a59b35730d2f31e02d37f Mon Sep 17 00:00:00 2001 From: John Glover Date: Thu, 21 Oct 2010 13:39:28 +0100 Subject: Changed from floats to doubles in the C/C++ code, makes Python integration a bit easier. Fixed a bug that would cause SndObjSynthesis to crash if peak values were floats. --- examples/timestretch.py | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) (limited to 'examples/timestretch.py') diff --git a/examples/timestretch.py b/examples/timestretch.py index 874b567..af9cfb4 100644 --- a/examples/timestretch.py +++ b/examples/timestretch.py @@ -14,32 +14,30 @@ # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -from simpl import SndObjPeakDetection, SndObjPartialTracking, SndObjSynthesis +import simpl from simpl.fx import time_stretch from scipy.io.wavfile import read, write import numpy as np -import time -input_file = '../test/audio/sinechirpsine.wav' -output_file = 'scs_2x_sndobj.wav' +input_file = '../tests/audio/flute.wav' +output_file = 'flute_2x.wav' time_stretch_factor = 2 -start_time = time.time() audio_in_data = read(input_file) -audio_in = np.asarray(audio_in_data[1], np.float32) / 32768.0 # values between -1 and 1 +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 = SndObjPeakDetection() +pd = simpl.SndObjPeakDetection() pd.max_peaks = 100 peaks = pd.find_peaks(audio_in) -pt = SndObjPartialTracking() +pt = simpl.SndObjPartialTracking() pt.max_partials = 10 partials = pt.find_partials(peaks) partials = time_stretch(partials, time_stretch_factor) -sndobj_synth = SndObjSynthesis() +sndobj_synth = simpl.SndObjSynthesis() audio_out = sndobj_synth.synth(partials) audio_out = np.asarray(audio_out * 32768, np.int16) -print "Execution time:", time.time() - start_time, "seconds" print "Writing output to", output_file -write(output_file, 44100, audio_out) \ No newline at end of file +write(output_file, 44100, audio_out) + -- cgit v1.2.3