1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | import logging logging.basicConfig(level=logging.DEBUG, format='%(asctime)s\t%(levelname)s\t%(message)s') import snd import time from datetime import date import threading from pydispatch import dispatcher import wave import serial #python -m serial.tools.miniterm -p COM20 -e -b 115200 --cr filename = "demo.wav" MIN_LENGTH = 90000 def worker(filename): """thread worker function http://www.doughellmann.com/PyMOTW/threading/ https://github.com/uskr/pynma ffmpeg -i 2012-09-29-1348911268.34-demo.wav -ar 8000 -ab 4.75k test.3gp http://stackoverflow.com/questions/2559746/getting-error-while-converting-wav-to-amr-using-ffmpeg """ print 'Worker for '+filename ser.write("GLG\r") line = ser.readline() # read a '\n' terminated line print line return def filenameMaker(): global filename filename = date.today().isoformat()+'-'+str(time.time())+'-demo.wav' def record_to_async_file(): "Records from the microphone and outputs the resulting data to `path`" sample_width, data = snd.record() print str(len(data)) if len(data) > MIN_LENGTH: data = snd.pack('<' + ('h'*len(data)), *data) path = filename dispatcher.send( signal='FILE_CREATED', sender=filename, filename=filename) wf = wave.open(path, 'wb') wf.setnchannels(1) wf.setsampwidth(sample_width) wf.setframerate(snd.RATE) wf.writeframes(data) wf.close() print("done - result "+str(len(data))+" frames written to "+path) dispatcher.connect( filenameMaker, signal='SND_STARTED', sender=dispatcher.Any ) dispatcher.connect( worker, signal='FILE_CREATED', sender=dispatcher.Any ) ser = serial.Serial('COM20', 112500, timeout=1) print "Scannr started..." while True: print "ready to record" record_to_async_file() ser.close() |