Ignore short silent clips
[scannr.git] / scannr.py
blob:a/scannr.py -> blob:b/scannr.py
  import logging
  logging.basicConfig(level=logging.DEBUG,
  format='%(asctime)s\t%(levelname)s\t%(message)s')
   
import snd import snd
import time import time
from datetime import date from datetime import date
import threading import threading
from pydispatch import dispatcher from pydispatch import dispatcher
import wave import wave
   
filename = "demo.wav" filename = "demo.wav"
  MIN_LENGTH = 90000
   
def worker(filename): def worker(filename):
"""thread worker function """thread worker function
http://www.doughellmann.com/PyMOTW/threading/ http://www.doughellmann.com/PyMOTW/threading/
   
https://github.com/uskr/pynma 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/1092531/event-system-in-python """ http://stackoverflow.com/questions/2559746/getting-error-while-converting-wav-to-amr-using-ffmpeg
  """
print 'Worker for '+filename print 'Worker for '+filename
return return
   
def filenameMaker(): def filenameMaker():
global filename global filename
filename = date.today().isoformat()+'-'+str(time.time())+'-demo.wav' filename = date.today().isoformat()+'-'+str(time.time())+'-demo.wav'
   
def record_to_async_file(): def record_to_async_file():
"Records from the microphone and outputs the resulting data to `path`" "Records from the microphone and outputs the resulting data to `path`"
sample_width, data = snd.record() sample_width, data = snd.record()
data = snd.pack('<' + ('h'*len(data)), *data) print str(len(data))
path = filename if len(data) > MIN_LENGTH:
dispatcher.send( signal='FILE_CREATED', sender=filename, filename=filename) data = snd.pack('<' + ('h'*len(data)), *data)
wf = wave.open(path, 'wb') path = filename
wf.setnchannels(1) dispatcher.send( signal='FILE_CREATED', sender=filename, filename=filename)
wf.setsampwidth(sample_width) wf = wave.open(path, 'wb')
wf.setframerate(snd.RATE) wf.setnchannels(1)
wf.writeframes(data) wf.setsampwidth(sample_width)
wf.close() wf.setframerate(snd.RATE)
print("done - result written to "+path) 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( filenameMaker, signal='SND_STARTED', sender=dispatcher.Any )
dispatcher.connect( worker, signal='FILE_CREATED', sender=dispatcher.Any ) dispatcher.connect( worker, signal='FILE_CREATED', sender=dispatcher.Any )
print "Scannr started..." print "Scannr started..."
while True: while True:
print "ready to record" print "ready to record"
record_to_async_file() record_to_async_file()