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import os
import contextlib
import functools
import re
import signal
import sys
import glob

import google.auth
import google.auth.transport.grpc
import google.auth.transport.requests

from google.cloud.proto.speech.v1beta1 import cloud_speech_pb2
from google.rpc import code_pb2

import grpc
import pyaudio

from six.moves import queue

#word

word=''

# Audio recording parameters
RATE = 44100
CHUNK = int(RATE / 10) # 100ms

# The Speech API has a streaming limit of 60 seconds of audio*, so keep the
# connection alive for that long, plus some more to give the API time to figure
# out the transcription.
# * https://g.co/cloud/speech/limits#content

DEADLINE_SECS = 60 * 3 +5
SPEECH_SCOPE = 'https://www.googleapis.com/auth/cloud-platform'

def make_channel(host, port):
"""Creates a secure channel with auth credentials from the environment."""
# Grab application default credentials from the environment
credentials, _ = google.auth.default(scopes=[SPEECH_SCOPE])

# Create a secure channel using the credentials.
http_request = google.auth.transport.requests.Request()

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