BUFFERSIZE = 1024
AUDIO_DEVICE_ID = 0

import numpy
import pyaudio

def audiocallback(in_data, frame_count, time_info, status):
    sz = frame_count * 2
    b = numpy.zeros(sz, numpy.float)
    odata = (b.astype(numpy.int16)).tostring()
    return (odata, pyaudio.paContinue)

p = pyaudio.PyAudio()
stream = p.open(format = pyaudio.paInt16, channels = 2, rate = 44100, frames_per_buffer = BUFFERSIZE, output = True, input = False, output_device_index = AUDIO_DEVICE_ID, stream_callback = audiocallback)
print 'Opened : '+ p.get_device_info_by_index(AUDIO_DEVICE_ID)['name']

raw_input()