annotate demos/echo.py @ 11:e4de06f4f6f8

Update README.md

from auditok import ADSFactory, AudioEnergyValidator, StreamTokenizer, player_for
import pyaudio
import sys

energy_threshold = 45
duration = 10 # seconds


if len(sys.argv) > 1:
  energy_threshold = float(sys.argv[1])

if len(sys.argv) > 2:
  duration = float(sys.argv[2])

# record = True so that we'll be able to rewind the source.
# max_time = 10: read 10 seconds from the microphone
asource = ADSFactory.ads(record=True, max_time = duration)

validator = AudioEnergyValidator(sample_width=asource.get_sample_width(), energy_threshold = energy_threshold)
tokenizer = StreamTokenizer(validator=validator, min_length=20, max_length=250, max_continuous_silence=30)

player = player_for(asource)

def echo(data, start, end):
   print("Acoustic activity at: {0}--{1}".format(start, end))
   player.play(''.join(data))

asource.open()

print("\n  ** Make some noise (dur:{}, energy:{})...".format(duration, energy_threshold))

tokenizer.tokenize(asource, callback=echo)

asource.close()
player.stop()