brauche Hilfe, Audiodatei in ASCII,csv konvertieren

sox, der Chuck Norris unter den Audioconvertern, kennt ein .dat-Format:

"Text Data files. These files contain a textual representation of the 
sample data. There is one line at the beginning that contains the sample 
rate. Subsequent lines contain two numeric data items: the time since 
the beginning of the first sample and the sample value. Values are 
normalized so that the maximum and minimum are 1 and -1. This file 
format can be used to create data files for external programs such as 
FFT analysers or graph routines. SoX can also convert a file in this 
format back into one of the other file formats."

Wenn das nicht so aussieht, wie Du das brauchst, dann würde ich an 
Deiner Stelle vermutlich selber was programmieren, z.B. mit libsndfile ( 
http://www.mega-nerd.com/libsndfile/ ) für den Import.

Mirko

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#!/usr/bin/python

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#benutzen mit 

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#       python diesedatei.py in.wav out.csv

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import wave

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import sys

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import struct

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infile = wave.open(sys.argv[1], 'r')

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outfile = open(sys.argv[2], 'w')

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num_samples = infile.getnframes()

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for i in range(0, num_samples):

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    frame = infile.readframes(1)

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    number = struct.unpack('h', frame)[0]

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    line = str(i) + ';' + str(number) + '\n'

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    outfile.write(line)

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infile.close()

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outfile.close()

Scheint zu funktionieren und ist leicht anzupassen.