import alsaaudio, sys
import time

channels = 1
sample_size = 1
frame_size = channels * sample_size
frame_rate = 44100
byte_rate = frame_rate * frame_size

#******************************************************************
#******************************************************************
#		OUTPUT					     *
#period size controls internal number of frames per period
period_size = 160

out = alsaaudio.PCM(alsaaudio.PCM_PLAYBACK, alsaaudio.PCM_NORMAL)

out.setchannels(channels)
out.setformat(alsaaudio.PCM_FORMAT_S16_LE)
out.setrate(frame_rate)
out.setperiodsize(period_size)

#******************************************************************
#******************************************************************
#			INPUT  					*

inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NORMAL)

inp.setchannels(channels)
inp.setrate(frame_rate)
inp.setformat(alsaaudio.PCM_FORMAT_S16_LE)#16 bit little endian
inp.setperiodsize(period_size)

#******************************************************************

def main():
	
	while True:
		l, data = inp.read()#l seems to always be 940
		if l:
			#time.sleep(.1)
			out.write(data)
	
		time.sleep(.001)
	return
	
if __name__ == '__main__':
	main()