Saturday, August 6, 2022

PyQt6: A simple Text-to-Speech app

 This demo program shows how to use pyttx3 library to transform a text into audio.

The Output:



The Code:

 

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import pyttsx3

from PyQt6.QtGui import *
from PyQt6.QtCore import *
from PyQt6.QtWidgets import *



class SpeechRunnable(QRunnable):
    def __init__(self):
        QRunnable.__init__(self)
    def run(self):
        self.engine = pyttsx3.init()
        self.engine.setProperty('rate', 150)
        self.engine.setProperty('volume', 1)
        self.engine.say(self.chat_speech)
        self.engine.runAndWait()

    def say(self, text):
        if text != '':
          self.chat_speech = text
          QThreadPool.globalInstance().start(self)

    def stop(self):
        self.engine.stop()


class Window(QWidget):
    def __init__(self):
        super(Window, self).__init__()
        self.runnable = None
 
        self.le = QTextEdit(self)
        self.le.setPlainText(text)
        self.le.setGeometry(5, 40, 890, 450)
        self.btnStart = QPushButton("start", self)
        self.btnStart.setGeometry(5, 5, 100, 30)
        self.btnStop = QPushButton("stop", self)
        self.btnStop.setGeometry(110, 5, 100, 30)
        self.btnStart.clicked.connect(self.onClickedStart)
        self.runnable = SpeechRunnable()
        self.btnStop.clicked.connect(self.runnable.stop)
        self.setGeometry(25, 45, 900, 500)
        self.setWindowTitle('Speak')

    def onClickedStart(self):
        otext=self.le.toPlainText()
        
        self.runnable.say(otext)
        

    def closeEvent(self, event):
        if self.runnable is not None:
            self.runnable.stop()
            QThread.msleep(100) #delay
        super(Window, self).closeEvent(event)

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