small test of making audio in python

binaural_test_sound.py

import wave
import math
import struct

samplerate = 44100
frequency1 = 220
frequency2 = 219
duration = 5

def signal():
    samples = []
    for x in range(duration * samplerate):
        samples.append(
                1/2 * (math.sin(frequency1 * 2 * math.pi * x / samplerate) +\
                        math.sin(frequency2 * 2 * math.pi * x /samplerate))
                        )

    return samples

# w = file.open()
#...
#.. auto: w.close()
with wave.open("test.wav", 'wb') as w:
    w.setparams((2, 2, samplerate, samplerate * duration, 'NONE', 'not compressed'))
    max_amplitude = 32767.0
    samples = [int(sample * max_amplitude) for sample in signal()]
    for sample in samples:
        w.writeframes(struct.pack('h', sample))