Can't get QSoundEffect to play
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Hi,
I wrote a very simple program to play .wav file which I got from c:/Windows/Media. For some reason when I try to play the wav file nothing happens. I even copied the audio dll's from my Qt 5.12.2 folder into the bin folder where the program exe files live.
Below is the program.
#include "mainwindow.h"
#include "ui_mainwindow.h"MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);playSound();}
MainWindow::~MainWindow()
{
delete ui;
}void MainWindow::playSound()
{
QSoundEffect effect;
QString consoleBinDir(QApplication::applicationDirPath());
QString waveFile = QDir::cleanPath(consoleBinDir + "/Alarm01.wav");
effect.setSource(QUrl::fromLocalFile(waveFile));
qDebug() << QUrl::fromLocalFile(waveFile);
effect.setLoopCount(1);
effect.setVolume(1.0);
effect.play();
}
When I print out QUrl::fromLocalFile(waveFile) I get "QUrl("file:///C:/Qt-development/build-sound-Desktop_Qt_5_15_2_MSVC2019_64bit-Debug/debug/Alarm01.wav")" which seems correct. The wave file is certainly located there.Can someone please explain to me what I'm doing wrong? It's only a few lines of code!
Thanks
-
Hi,
I wrote a very simple program to play .wav file which I got from c:/Windows/Media. For some reason when I try to play the wav file nothing happens. I even copied the audio dll's from my Qt 5.12.2 folder into the bin folder where the program exe files live.
Below is the program.
#include "mainwindow.h"
#include "ui_mainwindow.h"MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);playSound();}
MainWindow::~MainWindow()
{
delete ui;
}void MainWindow::playSound()
{
QSoundEffect effect;
QString consoleBinDir(QApplication::applicationDirPath());
QString waveFile = QDir::cleanPath(consoleBinDir + "/Alarm01.wav");
effect.setSource(QUrl::fromLocalFile(waveFile));
qDebug() << QUrl::fromLocalFile(waveFile);
effect.setLoopCount(1);
effect.setVolume(1.0);
effect.play();
}
When I print out QUrl::fromLocalFile(waveFile) I get "QUrl("file:///C:/Qt-development/build-sound-Desktop_Qt_5_15_2_MSVC2019_64bit-Debug/debug/Alarm01.wav")" which seems correct. The wave file is certainly located there.Can someone please explain to me what I'm doing wrong? It's only a few lines of code!
Thanks
@leinad said in Can't get QSoundEffect to play:
QSoundEffect effect;
Basic C++ - how long does this object live?
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@leinad said in Can't get QSoundEffect to play:
ow can I make it live until the play is completed?
Again c++ basics - you can e.g. make it a member of your class.
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It exists I guess after the play() is called, how can I make it live until the play is completed? I tried putting a QThread::sleep after the play to hold the tread but still no sound.
@leinad said in Can't get QSoundEffect to play:
I tried putting a QThread::sleep after the play to hold the tread but still no sound.
?!
Make effect a class member, or allocate it on the heap...
