From e11640ebce01e39b4a900c5c29acd401cda4f77f Mon Sep 17 00:00:00 2001
From: John Glover <j@johnglover.net>
Date: Thu, 23 Aug 2012 18:28:47 +0100
Subject: [examples] Move examples to top level. Update examples so file paths
 can be specified on the command line.

---
 examples/plotpeaks.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 examples/plotpeaks.py

(limited to 'examples/plotpeaks.py')

diff --git a/examples/plotpeaks.py b/examples/plotpeaks.py
new file mode 100644
index 0000000..ef2a1a4
--- /dev/null
+++ b/examples/plotpeaks.py
@@ -0,0 +1,22 @@
+import sys
+import simpl
+import matplotlib.pyplot as plt
+
+usage = 'Usage: python {0} <wav file>'.format(__file__)
+if len(sys.argv) != 2:
+    print usage
+    sys.exit(1)
+
+audio = simpl.read_wav(sys.argv[1])[0]
+
+# take just a few frames
+audio = audio[len(audio) / 2:(len(audio) / 2) + 4096]
+
+# peak detection using the SndObj library
+pd = simpl.SndObjPeakDetection()
+pd.max_peaks = 20
+peaks = pd.find_peaks(audio)
+
+# plot peaks using matplotlib
+simpl.plot.plot_peaks(peaks)
+plt.show()
-- 
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