From 45753482e99ec37d9cab0d898f7b75d64f658a3c Mon Sep 17 00:00:00 2001
From: rimio <vasi.vilvoiu@gmail.com>
Date: Wed, 9 Jan 2019 00:08:57 +0200
Subject: VIS code

---
 util/genluts.py |  6 ++++++
 util/view.py    | 31 +++++++++++++++++++++++--------
 2 files changed, 29 insertions(+), 8 deletions(-)

(limited to 'util')

diff --git a/util/genluts.py b/util/genluts.py
index fcaead9..4bf07c5 100644
--- a/util/genluts.py
+++ b/util/genluts.py
@@ -21,6 +21,12 @@ for s in sn * 127:
     f.write(str(int(np.around(s))) + ', ')
 f.write('};\n\n')
 
+# SSTV_SIN_INT10_UINT8
+f.write('uint8_t SSTV_SIN_INT10_UINT8[1024] = { ')
+for s in (sn + 1) / 2 * 255:
+    f.write(str(int(np.around(s))) + ', ')
+f.write('};\n\n')
+
 # SSTV_SIN_INT10_INT16
 f.write('int16_t SSTV_SIN_INT10_INT16[1024] = { ')
 for s in sn * 32767:
diff --git a/util/view.py b/util/view.py
index b6e95fe..60b3a47 100644
--- a/util/view.py
+++ b/util/view.py
@@ -1,11 +1,26 @@
-import sys
-import numpy as np
 import matplotlib.pyplot as plt
+import numpy as np
+import wave
+import sys
+
+
+spf = wave.open('test.wav','r')
+
+#Extract Raw Audio from Wav File
+signal = spf.readframes(-1)
+signal = np.fromstring(signal, 'Int16')
+signal = signal.astype(np.float32)
+
+
+#If Stereo
+if spf.getnchannels() == 2:
+    print('Just mono files')
+    sys.exit(0)
 
-f = open('test.csv')
-lines = [int(l.replace('\n', '')) for l in f.readlines()[:-2]]
-f.close()
+#plt.figure(1)
+#plt.title('Signal Wave...')
+#plt.plot(signal)
+#plt.show()
 
-s = np.array(lines)
-plt.plot(s)
-plt.show()
+plt.specgram(signal, Fs=48000)
+plt.show()
\ No newline at end of file
-- 
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