《Qt5+语音功能（QTextToSpeech类）》 |
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《Qt5+语音功能（QTextToSpeech类）》
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在Qt中QTextToSpeech类提供了文本转语音引擎，使用say()函数合成文本，使用setLocale()指定语言环境，使用setRate()函数设置语速，使用setPitch()函数设置音高，使用setVolume()函数设置音量。 
简单示例
1、打开Qt，新建一个Qt Widgets Application项目，在pro文件中添加QT += texttospeech，添加头文件#include "QTextToSpeech" pro文件 #------------------------------------------------- # # Project created by QtCreator 2018-11-27T21:52:02 # #------------------------------------------------- QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets QT += texttospeech TARGET = QTextToSpeech TEMPLATE = app # The following define makes your compiler emit warnings if you use # any feature of Qt which has been marked as deprecated (the exact warnings # depend on your compiler). Please consult the documentation of the # deprecated API in order to know how to port your code away from it. DEFINES += QT_DEPRECATED_WARNINGS # You can also make your code fail to compile if you use deprecated APIs. # In order to do so, uncomment the following line. # You can also select to disable deprecated APIs only up to a certain version of Qt. #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 SOURCES += \ main.cpp \ mainwindow.cpp HEADERS += \ mainwindow.h FORMS += \ mainwindow.ui2、然后在mainwindow.cpp中添加代码 #include "mainwindow.h" #include "ui_mainwindow.h" #include "QTextToSpeech" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); QTextToSpeech *tts = new QTextToSpeech(this); tts->setLocale(QLocale::Chinese);//设置语言环境 tts->setRate(0.0);//设置语速-1.0到1.0 tts->setPitch(1.0);//设置音高-1.0到1.0 tts->setVolume(1.0);//设置音量0.0-1.0 if(tts->state()==QTextToSpeech::Ready) { for(int i=0;istop();//停止语音 } else { tts->say("北京欢迎你");//开始合成文本 } } } } MainWindow::~MainWindow() { delete ui; } Qt官方示例代码实现功能： 选择引擎选择语言选择声音类型设置音高、音速、音量阅读、暂停、继续、停止 /**************************************************************************** ** ** Copyright (C) 2017 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "mainwindow.h" #include MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), m_speech(0) { ui.setupUi(this); setWindowTitle("语音播报"); QLoggingCategory::setFilterRules(QStringLiteral("qt.speech.tts=true \n qt.speech.tts.*=true")); // Populate engine selection list ui.engine->addItem("Default", QString("default")); foreach (QString engine, QTextToSpeech::availableEngines()) ui.engine->addItem(engine, engine); ui.engine->setCurrentIndex(0); engineSelected(0); connect(ui.speakButton, &QPushButton::clicked, this, &MainWindow::speak); connect(ui.pitch, &QSlider::valueChanged, this, &MainWindow::setPitch); connect(ui.rate, &QSlider::valueChanged, this, &MainWindow::setRate); connect(ui.volume, &QSlider::valueChanged, this, &MainWindow::setVolume); connect(ui.engine, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::engineSelected); } //朗读 void MainWindow::speak() { m_speech->say(ui.plainTextEdit->toPlainText()); } //停止 void MainWindow::stop() { m_speech->stop(); } /*设置语速-1.0到1.0*/ void MainWindow::setRate(int rate) { m_speech->setRate(rate / 10.0); } /*设置音高-1.0到1.0*/ void MainWindow::setPitch(int pitch) { m_speech->setPitch(pitch / 10.0); } /*设置音量0.0-1.0*/ void MainWindow::setVolume(int volume) { m_speech->setVolume(volume / 100.0); } /*状态改变*/ void MainWindow::stateChanged(QTextToSpeech::State state) { if (state == QTextToSpeech::Speaking) { ui.statusbar->showMessage("Speech started..."); } else if (state == QTextToSpeech::Ready) ui.statusbar->showMessage("Speech stopped...", 2000); else if (state == QTextToSpeech::Paused) ui.statusbar->showMessage("Speech paused..."); else ui.statusbar->showMessage("Speech error!"); ui.pauseButton->setEnabled(state == QTextToSpeech::Speaking); ui.resumeButton->setEnabled(state == QTextToSpeech::Paused); ui.stopButton->setEnabled(state == QTextToSpeech::Speaking || state == QTextToSpeech::Paused); } /*选择引擎*/ void MainWindow::engineSelected(int index) { QString engineName = ui.engine->itemData(index).toString(); delete m_speech; if (engineName == "default") m_speech = new QTextToSpeech(this); else m_speech = new QTextToSpeech(engineName, this); disconnect(ui.language, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::languageSelected); ui.language->clear(); // Populate the languages combobox before connecting its signal. QVector locales = m_speech->availableLocales(); QLocale current = m_speech->locale(); foreach (const QLocale &locale, locales) { QString name(QString("%1 (%2)") .arg(QLocale::languageToString(locale.language())) .arg(QLocale::countryToString(locale.country()))); QVariant localeVariant(locale); ui.language->addItem(name, localeVariant); if (locale.name() == current.name()) current = locale; } setRate(ui.rate->value()); setPitch(ui.pitch->value()); setVolume(ui.volume->value()); connect(ui.stopButton, &QPushButton::clicked, m_speech, &QTextToSpeech::stop); connect(ui.pauseButton, &QPushButton::clicked, m_speech, &QTextToSpeech::pause); connect(ui.resumeButton, &QPushButton::clicked, m_speech, &QTextToSpeech::resume); connect(m_speech, &QTextToSpeech::stateChanged, this, &MainWindow::stateChanged); connect(m_speech, &QTextToSpeech::localeChanged, this, &MainWindow::localeChanged); connect(ui.language, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::languageSelected); localeChanged(current); } /*选择语言*/ void MainWindow::languageSelected(int language) { QLocale locale = ui.language->itemData(language).toLocale(); m_speech->setLocale(locale); } /*选择声音*/ void MainWindow::voiceSelected(int index) { m_speech->setVoice(m_voices.at(index)); } /*语言环境改变*/ void MainWindow::localeChanged(const QLocale &locale) { QVariant localeVariant(locale); ui.language->setCurrentIndex(ui.language->findData(localeVariant)); disconnect(ui.voice, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::voiceSelected); ui.voice->clear(); m_voices = m_speech->availableVoices(); QVoice currentVoice = m_speech->voice(); foreach (const QVoice &voice, m_voices) { ui.voice->addItem(QString("%1 - %2 - %3").arg(voice.name()) .arg(QVoice::genderName(voice.gender())) .arg(QVoice::ageName(voice.age()))); if (voice.name() == currentVoice.name()) ui.voice->setCurrentIndex(ui.voice->count() - 1); } connect(ui.voice, static_cast(&QComboBox::currentIndexChanged), this, &MainWindow::voiceSelected); } 显示效果
Qt官方示例完整代码下载链接：https://pan.baidu.com/s/1ryMHLF_d0sAlLPPyoFBYfQ 提取码：iqt3
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