def main():
"""
Accept user voice input and translate it into desired language until
user says exit or turn off.
"""
os.system("flite -voice rms -t 'Booting up computer now'")
# See if user has an API key to Google Cloud. If not, just set API_KEY
# to None. This tells the program to use Google Web API for speech-to-
# text which presumably logs user voice. Google Cloud API requires an
# account and credit card but gives the user the option to opt out of
# logging.
try:
with open("./.api_key") as f:
API_KEY = validate_api(f.read())
except FileNotFoundError as e:
API_KEY = ""
# Have LEDs pulse when program is starting up and beep to confirm device is ready
listener = Listener(api=API_KEY)
listener.breathe()
listener.confirmation()
# Verbal prompt
os.system("flite -voice rms -t 'Device ready'")
listener.set_brightness(0.10, True, 0.001)
translator = Translator()
# Loop for feedback
while True:
os.system("aplay -q 'beep.wav'")
# Prompt user
text = listener.listen()
# If exit or turn off, break and turn off device.
if (translator.translate(text, dest="en").text == "exit"
or translator.translate(text, dest="en").text == "turn off"
# text == translator.translate("exit", dest="en").text
# or text == translator.translate("turn off", dest="en").text
):
break
# Change language to translate into
if translator.translate(text,
dest="en").text.startswith("Set target to"):
self.set_target(text.split("")[-1])
continue
# Change input language (translate 'set source to')
if translator.translate(text,
dest="en").text.startswith("Set source to"):
self.set_source(text.split("")[-1])
continue
# Now take the perceived audio and do something with it
try:
print(f"Google thinks you said:\n{text}")
except sr.UnknownValueError:
print(f"Google Speech could not understand audio")
except sr.RequestError as e:
print(
f"Could not request results from Google Speech Recognition services: {e}"
)
# Speak the translated text if user does not want to exit
text = translator.translate(text=text,
src=listener.src,
dest=listener.target).text
# Now sanitize the text
text = "".join(
[char for char in text if char.isalnum() or char.isspace()])
print(text)
os.system(f"flite -voice rms -t {text.__repr__()}")
sleep(2)
listener.confirmation()
print("Continue through the loop")
# Pulsate LED once more, hold it, and then turn off device
listener.breathe(iterations=1, rest=3)
os.system("shutdown 0")
