/ Natural Language Processing

A text-to-speech conversion library in Python

A text-to-speech conversion library in Python


pyttsx3 is a text-to-speech conversion library in Python. Unlike alternative libraries, it works offline.

Installation :

pip install pyttsx3

If you get installation errors , make sure you first upgrade your wheel version using :
pip install --upgrade wheel

Linux installation requirements :

  • If you are on a linux system and if the voice output is not working , then :

    Install espeak , ffmpeg and libespeak1 as shown below:

    sudo apt update && sudo apt install espeak ffmpeg libespeak1

Features :

  • ✨Fully OFFLINE text to speech conversion
  • 🎈 Choose among different voices installed in your system
  • 🎛 Control speed/rate of speech
  • 🎚 Tweak Volume
  • 📀 Save the speech audio as a file
  • ❤️ Simple, powerful, & intuitive API

Usage :

import pyttsx3
engine = pyttsx3.init()
engine.say("I will speak this text")

Single line usage with speak function with default options

import pyttsx3
pyttsx3.speak("I will speak this text")

Changing Voice , Rate and Volume :

import pyttsx3
engine = pyttsx3.init() # object creation

""" RATE"""
rate = engine.getProperty('rate')   # getting details of current speaking rate
print (rate)                        #printing current voice rate
engine.setProperty('rate', 125)     # setting up new voice rate

volume = engine.getProperty('volume')   #getting to know current volume level (min=0 and max=1)
print (volume)                          #printing current volume level
engine.setProperty('volume',1.0)    # setting up volume level  between 0 and 1

voices = engine.getProperty('voices')       #getting details of current voice
#engine.setProperty('voice', voices[0].id)  #changing index, changes voices. o for male
engine.setProperty('voice', voices[1].id)   #changing index, changes voices. 1 for female

engine.say("Hello World!")
engine.say('My current speaking rate is ' + str(rate))

"""Saving Voice to a file"""
# On linux make sure that 'espeak' and 'ffmpeg' are installed
engine.save_to_file('Hello World', 'test.mp3')

Full documentation of the Library


Included TTS engines:

  • sapi5
  • nsss
  • espeak

Feel free to wrap another text-to-speech engine for use with pyttsx3.