sounds.py

from datetime import datetime
import pyaudio
import numpy
import wave

CHUNK = 4000
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 8000

audio = pyaudio.PyAudio()

stream = audio.open(format=FORMAT,
                channels=CHANNELS,
                rate=RATE,
                input=True,
                frames_per_buffer=CHUNK)

log = open("/var/log/sounds.log", "a")

# Use a Blackman window
window = numpy.blackman(CHUNK)

while True:
    data = stream.read(CHUNK, exception_on_overflow=False)
    waveData = wave.struct.unpack("%dh"%(CHUNK), data)
    npArrayData = numpy.array(waveData)
    indata = npArrayData * window
    for i in indata:
        log.write(datetime.now().strftime('%Y-%m-%dT%H:%M:%S.%f000Z') + ";" + str(i) + "\n")

log.close()

stream.stop_stream()
stream.close()
audio.terminate()