Alexa Voice Service

Get started

  1. Connect to Amazon Alexa to get authorized, and then save the oauth json string as avs.json

  2. Install python package avs

    sudo pip3 install avs

  3. Run a tap-n-talk voice assistant

    alexa-tap avs.json

  4. Setup Run a hands-free voice assistant using Snowboy as keyword detector

    a. setup snowboy

    b. run the python script

    ```
import os
import signal
import time

from voice_engine.source import Source
from voice_engine.kws import KWS
from avs.alexa import Alexa


def leds_on():
    os.system("mosquitto_pub -t '/voicen/leds/value' -m '0xf'")

def leds_off():
    os.system("mosquitto_pub -t '/voicen/leds/value' -m '0x0'")

def main():
    logging.basicConfig(level=logging.DEBUG)

    src = Source(rate=16000, channels=4, device_name='capture')
    kws = KWS(model='alexa')
    alexa = Alexa()

    alexa.state_listener.on_listening = leds_on
    alexa.state_listener.on_finished = leds_off

    src.pipeline(kws, alexa)

    def on_detected(keyword):
        logging.info('\ndetected {}'.format(keyword))
        alexa.listen()

    kws.set_callback(on_detected)

    is_quit = []
    def signal_handler(sig, frame):
        is_quit.append(True)
        print('quit')
    signal.signal(signal.SIGINT, signal_handler)

    src.pipeline_start()
    while not is_quit:
        time.sleep(1)

    src.pipeline_stop()


if __name__ == '__main__':
    main()
```

SDKs