In this article we are going to learn that How to Build Text to Speech App in PyQt5, for this we want to use QtTextToSpeech module, first of all let’s talk about this module, according to the documentation QtTextToSpeech module enables a PyQt application to support accessibility features such as text-to-speech, which is useful for end users who are visually challenged or cannot access the application for whatever reason. In which case the application can read out the relevant text.
First we need to install some libraries, the first one is PyQt5, and also because we are using Qt Designer, we need to install PyQt5 Tools, make sure that you install PyQt5, because at the writing of this article, we don’t have this module in PyQt6.
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pip install pyqt5 |
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pip install pyqt5-tools |
Now we want to design our simple app for Text to Speech App.
- Add QLabel, QLineEdit and a QPushButton, after that add Horizontal Layout
- Add Another QLabel with QComboBox and make the layout Horizontally
- Add Another QLabel with QSlider and make the layout Horizontally
- At the end make the main window layout as vertically
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This is the design at the end.
After that save your file in your working directory, it will be a .UI extension and now let’s convert our UI file to PY file, we can use pyuic5 module for converting our .UI file to .PY file.
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pyuic5 -x TextToSpeech.ui -o TextToSpeech.py |
This is the code for creating the engine and also finding the available voices for the engine.
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self.engine = None engineNames = QTextToSpeech.availableEngines() if len(engineNames) > 0: engineName = engineNames[0] self.engine = QTextToSpeech(engineName) self.engine.stateChanged.connect(self.stateChanged) self.voices = [] for voice in self.engine.availableVoices(): self.voices.append(voice) self.comboBox.addItem(voice.name()) else: self.pushButton.setEnabled(False) |
Now let’s create our stateChanged method, we have connected this at the top.
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self.engine.stateChanged.connect(self.stateChanged) |
This is the method that we have connected this with clicked signal of the QPushButton.
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def say(self): self.pushButton.setEnabled(False) self.engine.setVoice(self.voices[self.comboBox.currentIndex()]) self.engine.setVolume(float(self.horizontalSlider.value() / 100)) self.engine.say(self.lineEdit.text()) |
This is the complete code for this lesson.
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from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtWidgets import QMainWindow from PyQt5.QtTextToSpeech import QTextToSpeech class Ui_MainWindow(QMainWindow): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(658, 236) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.centralwidget) self.verticalLayout_2.setObjectName("verticalLayout_2") self.verticalLayout = QtWidgets.QVBoxLayout() self.verticalLayout.setObjectName("verticalLayout") self.horizontalLayout = QtWidgets.QHBoxLayout() self.horizontalLayout.setObjectName("horizontalLayout") self.label = QtWidgets.QLabel(self.centralwidget) font = QtGui.QFont() font.setPointSize(12) font.setBold(True) font.setWeight(75) self.label.setFont(font) self.label.setObjectName("label") self.horizontalLayout.addWidget(self.label) self.lineEdit = QtWidgets.QLineEdit(self.centralwidget) font = QtGui.QFont() font.setPointSize(12) font.setBold(True) font.setWeight(75) self.lineEdit.setFont(font) self.lineEdit.setObjectName("lineEdit") self.horizontalLayout.addWidget(self.lineEdit) self.pushButton = QtWidgets.QPushButton(self.centralwidget) font = QtGui.QFont() font.setPointSize(12) font.setBold(True) font.setWeight(75) self.pushButton.setFont(font) self.pushButton.setObjectName("pushButton") self.pushButton.clicked.connect(self.say) self.horizontalLayout.addWidget(self.pushButton) self.verticalLayout.addLayout(self.horizontalLayout) spacerItem = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding) self.verticalLayout.addItem(spacerItem) self.horizontalLayout_2 = QtWidgets.QHBoxLayout() self.horizontalLayout_2.setObjectName("horizontalLayout_2") self.label_2 = QtWidgets.QLabel(self.centralwidget) font = QtGui.QFont() font.setPointSize(12) font.setBold(True) font.setWeight(75) self.label_2.setFont(font) self.label_2.setObjectName("label_2") self.horizontalLayout_2.addWidget(self.label_2) self.comboBox = QtWidgets.QComboBox(self.centralwidget) font = QtGui.QFont() font.setPointSize(12) font.setBold(True) font.setWeight(75) self.comboBox.setFont(font) self.comboBox.setObjectName("comboBox") self.horizontalLayout_2.addWidget(self.comboBox) self.verticalLayout.addLayout(self.horizontalLayout_2) spacerItem1 = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding) self.verticalLayout.addItem(spacerItem1) self.horizontalLayout_3 = QtWidgets.QHBoxLayout() self.horizontalLayout_3.setObjectName("horizontalLayout_3") self.label_3 = QtWidgets.QLabel(self.centralwidget) font = QtGui.QFont() font.setPointSize(12) font.setBold(True) font.setWeight(75) self.label_3.setFont(font) self.label_3.setObjectName("label_3") self.horizontalLayout_3.addWidget(self.label_3) self.horizontalSlider = QtWidgets.QSlider(self.centralwidget) self.horizontalSlider.setProperty("value", 40) self.horizontalSlider.setOrientation(QtCore.Qt.Horizontal) self.horizontalSlider.setObjectName("horizontalSlider") self.horizontalLayout_3.addWidget(self.horizontalSlider) self.verticalLayout.addLayout(self.horizontalLayout_3) self.verticalLayout_2.addLayout(self.verticalLayout) MainWindow.setCentralWidget(self.centralwidget) self.retranslateUi(MainWindow) QtCore.QMetaObject.connectSlotsByName(MainWindow) self.engine = None engineNames = QTextToSpeech.availableEngines() if len(engineNames) > 0: engineName = engineNames[0] self.engine = QTextToSpeech(engineName) self.engine.stateChanged.connect(self.stateChanged) self.voices = [] for voice in self.engine.availableVoices(): self.voices.append(voice) self.comboBox.addItem(voice.name()) else: self.pushButton.setEnabled(False) def say(self): self.pushButton.setEnabled(False) self.engine.setVoice(self.voices[self.comboBox.currentIndex()]) self.engine.setVolume(float(self.horizontalSlider.value() / 100)) self.engine.say(self.lineEdit.text()) def stateChanged(self, state): if(state == QTextToSpeech.State.Ready): self.pushButton.setEnabled(True) def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate("MainWindow", "Text To Speech")) self.label.setText(_translate("MainWindow", "Text:")) self.pushButton.setText(_translate("MainWindow", "Say")) self.label_2.setText(_translate("MainWindow", "Voices:")) self.label_3.setText(_translate("MainWindow", "Volume:")) if __name__ == "__main__": import sys app = QtWidgets.QApplication(sys.argv) MainWindow = QtWidgets.QMainWindow() ui = Ui_MainWindow() ui.setupUi(MainWindow) MainWindow.show() sys.exit(app.exec_()) |
Run the complete code and you will receive this kind of UI with Text to Speech functionality in PyQt5.
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