Demo of pysstx3 Text-To-Speech with thkinter.

tts.py

import tkinter as tk
from tkinter import ttk
import pyttsx3

engine = pyttsx3.init()

current_rate = engine.getProperty('rate')
current_volume = engine.getProperty('volume')
voices = engine.getProperty('voices')
current_voice_index = 0  # default

def apply_settings(rate, volume, voice_index):
    engine.setProperty('rate', rate)
    engine.setProperty('volume', volume)
    engine.setProperty('voice', voices[voice_index].id)


def main_window():
    def speak():
        text = entry.get()
        if text.strip():
            engine.say(text)
            engine.runAndWait()

    def open_settings():
        root.destroy()
        settings_window()

    root = tk.Tk()
    root.title("Text-to-Speech")
    root.geometry("400x180")
    root.resizable(False, False)

    label = tk.Label(root, text="Enter your text:", font=("Arial", 12))
    label.pack(pady=10)

    entry = tk.Entry(root, font=("Arial", 12), width=40)
    entry.pack()

    button_frame = tk.Frame(root)
    button_frame.pack(pady=10)

    speak_btn = tk.Button(button_frame, text="Speak", font=("Arial", 12), command=speak)
    speak_btn.grid(row=0, column=0, padx=10)

    settings_btn = tk.Button(button_frame, text="Settings", font=("Arial", 12), command=open_settings)
    settings_btn.grid(row=0, column=1, padx=10)

    root.mainloop()


def settings_window():
    def save_and_back():
        selected_rate = int(rate_slider.get())
        selected_volume = float(volume_slider.get())
        selected_voice_index = voice_combo.current()

        apply_settings(selected_rate, selected_volume, selected_voice_index)

        settings.destroy()
        main_window()

    settings = tk.Tk()
    settings.title("Settings")
    settings.geometry("400x300")
    settings.resizable(False, False)

    tk.Label(settings, text="Speech rate:", font=("Arial", 11)).pack(pady=(10, 0))
    rate_slider = tk.Scale(settings, from_=50, to=300, orient='horizontal')
    rate_slider.set(current_rate)
    rate_slider.pack()

    tk.Label(settings, text="Volume:", font=("Arial", 11)).pack(pady=(10, 0))
    volume_slider = tk.Scale(settings, from_=0, to=1, resolution=0.1, orient='horizontal')
    volume_slider.set(current_volume)
    volume_slider.pack()

    tk.Label(settings, text="Voice:", font=("Arial", 11)).pack(pady=(10, 0))
    voice_combo = ttk.Combobox(settings, values=[v.name for v in voices], state="readonly")
    voice_combo.current(current_voice_index)
    voice_combo.pack()

    tk.Button(settings, text="Save and return", font=("Arial", 12), command=save_and_back).pack(pady=20)

    settings.mainloop()

apply_settings(current_rate, current_volume, current_voice_index)
main_window()