How to play sound

doforumda

i am creating a small application that plays sound by clicking "Play Sound". How can i do that.
here is my code

playaudio.h
@
#ifndef PLAYAUDIO_H
#define PLAYAUDIO_H

#include <QWidget>

class QPushButton;

class playAudio : public QWidget
{
Q_OBJECT

public:
playAudio(QWidget *parent = 0);

public slots:
void playSound();

private:
QPushButton *play;
};

#endif // PLAYAUDIO_H
@

playaudio.cpp
@
#include "playaudio.h"
#include <QtGui>

playAudio::playAudio(QWidget *parent) :
QWidget(parent)
{
QLabel *label = new QLabel(tr("Click Play to Play a Sound"));
play = new QPushButton(tr("Play Sound"));

connect(play, SIGNAL(clicked()), this, SLOT(playSound()));

QGridLayout *mainLayout = new QGridLayout;
mainLayout->addWidget(label, 0, 0);
mainLayout->addWidget(play, 1, 0);
setLayout(mainLayout);
setWindowTitle(tr("Play Sound"));

}

void playAudio::playSound()
{

}
@

main.cpp

@
#include <QtGui/QApplication>
#include "playaudio.h"

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
playAudio w;
w.show();

return a.exec&#40;&#41;;

}
@

MTK358

Try QSound.

All it does is play a sound file, it doesn't support pausing or seeking, and it only works with simple formats like WAVE. It's meant mostly for short sound effects.

danilocesar

If you're a linux user:
QSound will not work if your Xorg doesn't use NAS (probably it doesn't use).

Try "QtMultimedia":http://doc.trolltech.com/4.6/qtmultimedia.html module or even Phonon API's.

MTK358

Somehow I doubt that they use Phonon for all the little sound effects in Linux Qt programs.

Anyway, I never tried QSound, so I don't know if it will work.

danilocesar

In fact they do use phonon...

Huge thread about it: http://lists-archives.org/kde-devel/24844-multiple-sounds-with-phonon.html

danilocesar

Ah,

The problem I've mentioned on that thread has been solved by using pulseaudio API's directly. But I do not recommend that =)