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Add filename arg to decoder #2

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Add filename arg to decoder #2

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13 changes: 12 additions & 1 deletion dtmf-decoder.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,21 @@
The wave file is split into bins and each bin is analyzed
for all the DTMF frequencies. The method run() will return a numeric
representation of the DTMF tone.

USAGE:
python dtmf-decoder.py filename

Will decode and print the dtmf tones found in the wav file "filename"

Example:
python dtmf-decoder.py dtmf.wav

'''
import wave
import struct
import math
import sys

class pygoertzel_dtmf:
def __init__(self, samplerate):
self.samplerate = samplerate
Expand Down Expand Up @@ -93,7 +104,7 @@ def run(self, sample):
return self.__get_number(freqs)
if __name__ == '__main__':
# load wav file
wav = wave.open('/home/michael/Downloads/dtmf.wav', 'r')
wav = wave.open(sys.argv[1], 'r')
(nchannels, sampwidth, framerate, nframes, comptype, compname) = wav.getparams()
frames = wav.readframes(nframes * nchannels)
# convert wave file to array of integers
Expand Down