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comparison tools/gen_sound.py @ 552:15713dfe555d pyntnclick

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The new, friendlier gen_sound helper
author Neil Muller <neil@dip.sun.ac.za>
date Sat, 11 Feb 2012 13:30:56 +0200
parents 5b9f371c2bb8
children
comparison
equal deleted inserted replaced
551:38fb04728ac5 552:15713dfe555d
25 data.append(struct.pack('<i', y)) 25 data.append(struct.pack('<i', y))
26 output = open(filename, 'w') 26 output = open(filename, 'w')
27 for x in range(int(freq * secs)): 27 for x in range(int(freq * secs)):
28 output.write(''.join(data)) 28 output.write(''.join(data))
29 output.close() 29 output.close()
30 return filename
30 31
31 32
33 def usage():
34 print 'Unexpected input'
35 print 'Usage: gen_sound.py <freq> [<length>]'
36 print ' where <freq> is the frequency in Hz (integer)'
37 print ' and [<length>] is the time is seconds (float)'
38
32 if __name__ == "__main__": 39 if __name__ == "__main__":
33 freq = int(sys.argv[1]) 40 try:
41 freq = int(sys.argv[1])
42 except Exception, exc:
43 usage()
44 print 'Error was: %s' % exc
45 sys.exit(1)
46
34 if len(sys.argv) > 2: 47 if len(sys.argv) > 2:
35 secs = float(sys.argv[2]) 48 try:
49 secs = float(sys.argv[2])
50 except Exception, exc:
51 usage()
52 print 'Error was: %s' % exc
53 sys.exit(1)
36 else: 54 else:
37 secs = 0.25 55 secs = 0.25
38 gen_sine(freq, secs) 56 output = gen_sine(freq, secs)
57 print 'Wrote sample to %s' % output