Qt --实现语音读文字功能

目的：实现语音读文字功能

.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H#include <QMainWindow>
#include <QTextToSpeech>namespace Ui {
class MainWindow;
}class MainWindow : public QMainWindow
{Q_OBJECTpublic:explicit MainWindow(QWidget *parent = 0);~MainWindow();public:void init();public slots:void speak();void stop();void setRate(int);void setPitch(int);void setVolume(int volume);void stateChanged(QTextToSpeech::State state);void engineSelected(int index);void languageSelected(int language);void voiceSelected(int index);void localeChanged(const QLocale &locale);private:Ui::MainWindow *ui;  QTextToSpeech *m_speech;QVector<QVoice> m_voices;
};#endif // MAINWINDOW_H

.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QLoggingCategory>MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow),m_speech(0)
{ui->setupUi(this);init();
}void MainWindow::init()
{QLoggingCategory::setFilterRules(QStringLiteral("qt.speech.tts=true \n qt.speech.tts.*=true"));// Populate engine selectionui->engine->addItem("Default", QString("default"));foreach (QString engine, QTextToSpeech::availableEngines())ui->engine->addItem(engine, engine);ui->engine->setCurrentIndex(0);engineSelected(0);// m_speech = new QTextToSpeech(this);connect(ui->pushButtonSpeak,SIGNAL(clicked(bool)),this,SLOT(speak()));connect(ui->SliderByPitch,SIGNAL(valueChanged(int)),this,SLOT(setPitch(int)));connect(ui->SliderByRate,SIGNAL(valueChanged(int)),this,SLOT(setRate(int)));connect(ui->SliderByVolume,SIGNAL(valueChanged(int)),this,SLOT(setVolume(int)));connect(ui->engine,SIGNAL(currentIndexChanged(int)),this,SLOT(engineSelected()));
}MainWindow::~MainWindow()
{delete ui;
}
void MainWindow::speak(){if(m_speech->state()==QTextToSpeech::Ready){m_speech->say("hello world");m_speech->say("zcf，i love you");m_speech->say("现在语音聊天机器人是一度火热，网上也有其他编程软件的语音聊天机器人");}}void MainWindow::stop(){m_speech->stop();}void MainWindow::setRate(int rate){m_speech->setRate(rate / 10.0);}void MainWindow::setPitch(int pitch){m_speech->setPitch(pitch / 10.0);}void MainWindow::setVolume(int volume){m_speech->setVolume(volume / 100.0);}void MainWindow::stateChanged(QTextToSpeech::State state){if (state == QTextToSpeech::Speaking) {statusBar()->showMessage("Speech started...");} else if (state == QTextToSpeech::Ready)statusBar()->showMessage("Speech stopped...", 2000);else if (state == QTextToSpeech::Paused)statusBar()->showMessage("Speech paused...");elsestatusBar()->showMessage("Speech error!");ui->pushButtonpause->setEnabled(state == QTextToSpeech::Speaking);ui->pushButtonresume->setEnabled(state == QTextToSpeech::Paused);ui->pushButtonStop->setEnabled(state == QTextToSpeech::Speaking || state == QTextToSpeech::Paused);}void MainWindow::engineSelected(int index){QString engineName = ui->engine->itemData(index).toString();delete m_speech;if (engineName == "default")m_speech = new QTextToSpeech(this);elsem_speech = new QTextToSpeech(engineName, this);disconnect(ui->language,SIGNAL(currentIndexChanged(int)),this,SLOT(languageSelected()));ui->language->clear();// Populate the languages combobox before connecting its signal.QVector<QLocale> 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->SliderByRate->value());setPitch(ui->SliderByPitch->value());setVolume(ui->SliderByVolume->value());connect(ui->pushButtonStop,SIGNAL(clicked(bool)),m_speech,SLOT(stop()));connect(ui->pushButtonpause,SIGNAL(clicked(bool)),m_speech,SLOT(pause()));connect(ui->pushButtonresume,SIGNAL(clicked(bool)),m_speech,SLOT(resume()));connect(m_speech,SIGNAL(stateChanged(QTextToSpeech::State)),this,SLOT(stateChanged(QTextToSpeech::State)));connect(m_speech,SIGNAL(localeChanged(QLocale)),this,SLOT(localeChanged(QLocale)));connect(ui->language,SIGNAL(currentIndexChanged(int)),this,SLOT(languageSelected(int)));localeChanged(current);}void MainWindow::languageSelected(int language){QLocale locale = ui->language->itemData(language).toLocale();m_speech->setLocale(locale);}void MainWindow::voiceSelected(int index){m_speech->setVoice(m_voices.at(index));}void MainWindow::localeChanged(const QLocale &locale){QVariant localeVariant(locale);ui->language->setCurrentIndex(ui->language->findData(localeVariant));disconnect(ui->engine,SIGNAL(currentIndexChanged(int)),this,SLOT(voiceSelected(int)));ui->engine->clear();m_voices = m_speech->availableVoices();QVoice currentVoice = m_speech->voice();foreach (const QVoice &voice, m_voices) {ui->engine->addItem(QString("%1 - %2 - %3").arg(voice.name()).arg(QVoice::genderName(voice.gender())).arg(QVoice::ageName(voice.age())));if (voice.name() == currentVoice.name())ui->engine->setCurrentIndex(ui->engine->count() - 1);}connect(ui->engine,SIGNAL(currentIndexChanged(int)),this,SLOT(voiceSelected(int)));}

实现：

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Qt --实现语音读文字功能

.h

.cpp

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