I test pyttsx3 and all is allways the same, robotic voice , i cannot change this voice

import pyttsx3import ostexte = input("le texte à exprimer ? : ")tts = pyttsx3.init()tts.say(texte)voices = tts.getProperty('voices')tts.setProperty("voice", voices[1].id)tts.runAndWait()

i tried to change setProperty("voice",voices[0].id) but nothing change, impossible to have a beautifull woman voiceI am on Xubuntu 20.04 LTS , i put ffmpeg and other libWhen i look a tuto on Youtube with exactly the same code, it is ok but with windowsCan you help me pleasePierre