Qt录音程序

源地址：http://www.oschina.net/code/snippet_1243295_48623

 

 

[代码] [C/C++]代码

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mainwindow.cpp
 
#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
//开始录音
void MainWindow::on_start_clicked()
{
    file =new QFile();
    file->setFileName("E:\\nihao");//设置其实设置音频文件的存放路径(输入音频名及存放路径)
    bool is_open =file->open(QIODevice::WriteOnly | QIODevice::Truncate);
    if(!is_open)
    {
        qDebug()<<"打开失败失败"<<endl;
        exit(1);
    }
 
    QAudioFormat format;
    format.setSampleRate(8000);
    format.setChannelCount(1);
    format.setSampleSize(8);
    format.setCodec("audio/wav");
    format.setByteOrder(QAudioFormat::LittleEndian);
    format.setSampleType(QAudioFormat::UnSignedInt);
 
    QAudioDeviceInfo info = QAudioDeviceInfo::defaultInputDevice();
    QString str=info.deviceName();
    qDebug()<<"使用的录音设备是:"<<str<<endl;
    if(!info.isFormatSupported(format))
    {
        format = info.nearestFormat(format);
    }
    input = new QAudioInput(format, this);
    ui->label->setText("录音开始......");
    input->start(file);
 
}
 
//停止录音
void MainWindow::on_finish_clicked()
{
    input->stop();
    file->close();
    ui->label->setText("录音结束......");
}
//播放录音
void MainWindow::on_play_clicked()
{
     file->setFileName("E:\\test.wav");
     file->open(QIODevice::ReadOnly);
 
     QAudioFormat format;
     format.setSampleRate(8000);
     format.setChannelCount(1);
     format.setSampleSize(8);
     format.setCodec("audio/wav");
     format.setByteOrder(QAudioFormat::LittleEndian);
     format.setSampleType(QAudioFormat::UnSignedInt);
 
     output = new QAudioOutput(format);
     output->start(file);
}
 
mainwindow.h
 
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
#include <QMultimedia>
#include <QFile>
#include <QDebug>
#include <QAudioFormat>
#include <QAudioDeviceInfo>
#include <QAudioInput>
#include <QTimer>
#include <QAudioOutput>
namespace Ui {
class MainWindow;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
private slots:
    void on_start_clicked();
 
    void on_finish_clicked();
 
    void on_play_clicked();
 
private:
    Ui::MainWindow *ui;
    QFile *file;
    QAudioInput * input;
    QAudioOutput* output;
};
 
#endif // MAINWINDOW_H
posted @ 2016-04-07 14:53  蓝夜  阅读(1361)  评论(0)    收藏  举报