Using python to play two sine tones at once

Posted by Alex on Stack Overflow See other posts from Stack Overflow or by Alex
Published on 2010-04-03T20:57:12Z Indexed on 2010/04/03 21:13 UTC
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I'm using python to play a sine tone. The tone is based off the computer's internal time in minutes, but I'd like to simultaneously play one based off the second for a harmonized or dualing sound.

This is what I have so far; can someone point me in the right direction?

from struct import pack
from math import sin, pi
import time

def au_file(name, freq, dur, vol):
    fout = open(name, 'wb')
    # header needs size, encoding=2, sampling_rate=8000, channel=1
    fout.write('.snd' + pack('>5L', 24, 8*dur, 2, 8000, 1))
    factor = 2 * pi * freq/8000
    # write data
    for seg in range(8 * dur):
        # sine wave calculations
        sin_seg = sin(seg * factor)
        fout.write(pack('b', vol * 127 * sin_seg))
    fout.close()

t = time.strftime("%S", time.localtime())
ti = time.strftime("%M", time.localtime())
tis = float(t)
tis = tis * 100
tim = float(ti)
tim = tim * 100

if __name__ == '__main__':
    au_file(name='timeSound1.au', freq = tim, dur=1000, vol=1.0)

    import os
    os.startfile('timeSound1.au')

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