Personal Assistant (Jarvis) in Python
I thought it would be cool to create a personal assistant in Python. If you are into movies you may have heard of Jarvis, an A.I. based character in the Iron Man films. In this tutorial we will create a robot.
The features I want to have are:
- Recognize spoken voice (Speech recognition)
- Answer in spoken voice (Text to speech)
- Answer simple commands
Related courses:
Video
This is what you'll create (watch the whole video, demo at the end):
Recognize spoken voice
Speech recognition can by done using the Python SpeechRecognition module. We make use of the Google Speech API because of it's great quality.Answer in spoken voice (Text To Speech)
Various APIs and programs are available for text to speech applications. Espeak and pyttsx work out of the box but sound very robotic. We decided to go with the Google Text To Speech API, gTTS.sudo pip install gTTSUsing it is as simple as:
from gtts import gTTS
import os
tts = gTTS(text='Hello World', lang='en')
tts.save("hello.mp3")
os.system("mpg321 hello.mp3")
Complete program
The program below will answer spoken questions.#!/usr/bin/env python3
# Requires PyAudio and PySpeech.
import speech_recognition as sr
from time import ctime
import time
import os
from gtts import gTTS
def speak(audioString):
print(audioString)
tts = gTTS(text=audioString, lang='en')
tts.save("audio.mp3")
os.system("mpg321 audio.mp3")
def recordAudio():
# Record Audio
r = sr.Recognizer()
with sr.Microphone() as source:
print("Say something!")
audio = r.listen(source)
# Speech recognition using Google Speech Recognition
data = ""
try:
# Uses the default API key
# To use another API key: `r.recognize_google(audio, key="GOOGLE_SPEECH_RECOGNITION_API_KEY")`
data = r.recognize_google(audio)
print("You said: " + data)
except sr.UnknownValueError:
print("Google Speech Recognition could not understand audio")
except sr.RequestError as e:
print("Could not request results from Google Speech Recognition service; {0}".format(e))
return data
def jarvis(data):
if "how are you" in data:
speak("I am fine")
if "what time is it" in data:
speak(ctime())
if "where is" in data:
data = data.split(" ")
location = data[2]
speak("Hold on Frank, I will show you where " + location + " is.")
os.system("chromium-browser https://www.google.nl/maps/place/" + location + "/&")
# initialization
time.sleep(2)
speak("Hi Frank, what can I do for you?")
while 1:
data = recordAudio()
jarvis(data)