self._arecord = subprocess.Popen(self._cmd, stdout=subprocess.PIPE)

def recordSound(duration = 1, sr = AUDIO_SAMPLE_RATE_HZ):

    recorder = Recorder(sample_rate_hz = sr)

    dumper = assembleArray(duration)

    with recorder, dumper:

        recorder.add_processor(dumper)

        while not dumper.is_done():

            time.sleep(0.1)



    byt_buffer_lst = dumper.byte_buffer

    byte_buffer = b''.join(byt_buffer_lst)

    dat = np.frombuffer(byte_buffer, np.int16)

    ## return sample rate in tuple to mimic wavfile read

    return((sr, dat))