gravetii gravetii - 5 months ago 30
Python Question

Why does QtGui.QSound just not play anything at all?

So, I am trying to play a sound in my application. Typically the sound needs to be played after a the end of a countdown and then user-interaction is stopped.

But, the problem is

just ends up playing nothing at all. I have tried mp3, wav etc. without any result.

What could be the possible reason?

I've tried this both on Linux and Windows. Here's what I tried (both play and play2 functions):

class Window(QtGui.QWidget):
def __init__(self):

def initUI(self):
self.setGeometry(300, 300, 200, 200)
self.btn = QtGui.QPushButton("Play", self)
self.btn.move(50, 80)

def play(self):
c = QtGui.QSound("1.mp3")

def play2(self):"1.mp3")

Neither of them work!

EDIT: I used Phonon for my purpose, but I have no idea why this doesn't work.


You should call QSound.isAvailable() to check whether the necessary sound facilities are available on your platform (but note that this may produce a false positive on Windows).

When I try this on Linux, is prints False, even though phonon is installed and I can play audio using the PyQt Phonon module.

This may be because I don't have NAS support built in (I haven't checked), which is the key requirement that determines availability on X11. For other platforms, see the Detailed Description for QSound - in particular, note that QSound will only play WAV files on Windows.