Question

Here is my work as yet.

import matplotlib.pyplot as plot
import numpy as num

def xr(start, stop, step):
    while start < stop:
        yield start
        start = start + step

wavef = lambda x: num.sin(x)/x

t0 = [wavef(x) for x in xr(5.0,200.0,0.1) if x is not 0]

plot.plot(t0)
plot.show()

Answer 1

Python has a wave module wave — Read and write WAV files .

An example of how to use it to write function data to a wav file is given here,
Create a synthetic ‘sine wave’ wave file and How to make a simple .wav file with Python.

You could also use Audiolab .

As you are already using numpy, you could use numpy.linspace or numpy.arange instead of your xr function. Something like,

x = num.arange( 5.0, 200.0, 0.1 )
wavef = num.sin(x)/x