add thomas' CMMR exemple, rewrite variables, BUG relative to last changes

diff --git a/tests/api/exemplesCMMR.py b/tests/api/exemplesCMMR.py
new file mode 100644 (file)
index 0000000..c4a2def
--- /dev/null
+++ b/tests/api/exemplesCMMR.py
@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Tue Jul 16 13:04:49 2013
+
+@author: thomas
+"""
+from __future__ import division
+import timeside.decoder
+import timeside.encoder
+import timeside.grapher
+import timeside.analyzer
+import matplotlib.pyplot as plt
+import numpy as np
+import sys
+
+wav_file = sys.argv[-1]
+
+# normal
+decoder = timeside.decoder.FileDecoder(wav_file, start=10, duration=15)
+#e = timeside.encoder.VorbisEncoder('output.ogg', overwrite = True)
+aubio_pitch = timeside.analyzer.AubioPitch()
+aubio_temporal = timeside.analyzer.AubioTemporal()
+specgram = timeside.analyzer.Spectrogram()
+waveform = timeside.analyzer.Waveform()
+#g  =  timeside.grapher.Spectrogram()
+#
+#
+pipe = (decoder | aubio_pitch | aubio_temporal | specgram | waveform).run()
+
+pipe.results.keys()
+
+# Display Spectrogram + Aubio Pitch + Aubio Beat
+plt.figure(1)
+
+spec_res = specgram.results['spectrogram_analyzer']
+N = spec_res.parameters['FFT_SIZE']
+plt.imshow(20 * np.log10(spec_res.data.T),
+           origin='lower',
+           extent=[spec_res.time[0], spec_res.time[-1], 0,
+                   (N // 2 + 1) / N * spec_res.frameMetadata.samplerate],
+           aspect='auto')
+
+res_pitch = aubio_pitch.results['aubio_pitch']
+plt.plot(res_pitch.time, res_pitch.data)
+
+
+res_beats = aubio_temporal.results['aubio_temporal.beat']
+
+for time in res_beats.time:
+    plt.axvline(time, color='r')
+
+plt.title('Spectrogram + Aubio pitch + Aubio beat')
+plt.grid()
+
+# Display waveform + Onsets
+plt.figure(2)
+res_wave = waveform.results['waveform_analyzer']
+plt.plot(res_wave.time, res_wave.data)
+res_onsets = aubio_temporal.results['aubio_temporal.onset']
+for time in res_onsets.time:
+    plt.axvline(time, color='g')
+plt.grid()
+plt.title('Waveform + Aubio onset')
+plt.show()