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record.py

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"""

PyAudio example: Record a few seconds of audio and save to a WAVE

file.

"""

import pyaudio

import wave

import sys

CHUNK = 1024

FORMAT = pyaudio . paInt16

CHANNELS = 2

RATE = 44100

RECORD_SECONDS = 5

WAVE_OUTPUT_FILENAME = "output.wav"

if sys . platform == 'darwin' :

CHANNELS = 1

p = pyaudio . PyAudio ()

stream = p . open ( format = FORMAT ,

channels = CHANNELS ,

rate = RATE ,

input = True ,

frames_per_buffer = CHUNK )

print ( "* recording" )

frames = []

for i in range ( 0 , int ( RATE / CHUNK * RECORD_SECONDS )):

data = stream . read ( CHUNK )

frames . append ( data )

print ( "* done recording" )

stream . stop_stream ()

stream . close ()

p . terminate ()

wf = wave . open ( WAVE_OUTPUT_FILENAME , 'wb' )

wf . setnchannels ( CHANNELS )

wf . setsampwidth ( p . get_sample_size ( FORMAT ))

wf . setframerate ( RATE )

wf . writeframes ( b'' . join ( frames ))

wf . close ()

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