def start_order_listener_thread(self):
"""
Start the STT engine thread
"""
logger.debug("[Order] Entering state: %s" % self.state)
HookManager.on_start_listening()
# start listening for an order
self.order_listener_callback_called = False
self.order_listener = OrderListener(callback=self.order_listener_callback)
self.order_listener.daemon = True
self.order_listener.start()
self.next_state()
def start_order_listener_thread(self):
"""
Start the STT engine thread
"""
logger.debug("[Order] Entering state: %s" % self.state)
HookManager.on_start_listening()
# start listening for an order
self.order_listener_callback_called = False
self.order_listener = OrderListener(callback=self.order_listener_callback)
self.order_listener.daemon = True
self.order_listener.start()
self.next_state()
def get_audio_from_stt(callback):
"""
Call the default STT to get an audio sample and return it into the callback method
:param callback: A callback function
"""
HookManager.on_start_listening()
# call the order listener
ol = OrderListener(callback=callback)
ol.start()
ol.join()
# wait that the STT engine has finish his job (or the neurotransmitter neuron will be killed)
if ol.stt_instance is not None:
ol.stt_instance.join()
HookManager.on_stop_listening()
def start_recording(self):
# pyaudio can work but alsa-lib spiting out error messages, to avoid this I used a method to suppress the messages found on stackoverflow
# https://stackoverflow.com/questions/7088672/pyaudio-working-but-spits-out-error-messages-each-time
with self.noalsaerr():
audio = pyaudio.PyAudio()
FORMAT = pyaudio.paInt32
if self.format == "paInt16":
FORMAT = pyaudio.paInt16
if self.format == "paInt24":
FORMAT = pyaudio.paInt24
stream = audio.open(format=FORMAT,
channels=self.channels,
rate=self.rate,
input=True,
frames_per_buffer=self.chunk)
Utils.print_info("[ Recorder ] Is recording...")
HookManager.on_start_listening()
frames = []
for i in range(0, int(self.rate / self.chunk * self.seconds)):
data = stream.read(self.chunk)
frames.append(data)
stream.stop_stream()
stream.close()
audio.terminate()
HookManager.on_stop_listening()
waveFile = wave.open(self.output, 'wb')
waveFile.setnchannels(2)
waveFile.setsampwidth(audio.get_sample_size(FORMAT))
waveFile.setframerate(self.rate)
waveFile.writeframes(b''.join(frames))
waveFile.close()
Utils.print_info("[ Recorder ] Record saved to %s" % self.output)
if self.playback:
self.playback_file(self.output)