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:

For this tutorial you will need (Ubuntu) Linux, Python and a working microphone.

Related courses:

Video

This is what you’ll create:

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 gTTS

Using 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")

gtts

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)

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38 thoughts on “Personal Assistant (Jarvis) in Python

  1. Tim Vogt - February 12, 2018

    How to use dutch as speak + voice command language?

    1. Frank - February 14, 2018

      For speech you could use the module gtts, it supports dutch using the ‘nl’ parameter.
      After saving the file, play it using one of the local audio players (or another module).

      from gtts import gTTS
       
      tts = gTTS(text='Hoe maakt u het?', lang='nl', slow=False)
      tts.save("hello.mp3")

      For speech recognition you can use the speech_recognition module and embed a language parameter. Most of them are external APIs that do speech recognition remotely. The implementation will depend on which external server is used, lets say we use the google API, this should do it:

      r.recognize_google(audio, language="nl-NL")

      Again, it will depend on the server endpoints and modules, this is one possible solution.