huita2

import sys
import numpy as np
import scipy.io.wavfile as io

Fs = 44100 #Hz
clk = 1000 #Hz

if len(sys.argv)==1:
    raise IOError("No file provided")

with open(sys.argv[1], 'r') as f:
    i = f.read()

t = np.arange(0, 1.0/clk*len(i),1.0/Fs)
s = np.zeros(len(t))
for nr, bit in enumerate(i):
    mask = np.logical_and(t>=nr*1.0/clk,t<(nr+1)*1.0/clk)
    if bit=='1':
        s[mask]=1
    elif bit=='0':
        s[mask]=0

io.write('output.wav', Fs, s)