Qt c++ play sound on key press - stops working after a few seconds

I'm making an apllication which needs to play .wav file when user type something inside QTextEdit. I made some code but after minute or less the sound stops, so I made silly workarround. After 30 clicks I invoke sound->stop(); and then the loop start again, that works, but it's not good, can you give better solution. Here is my code:

Code:

---

int count = 0;
bool MainWindow::eventFilter(QObject *o, QEvent *e){
    if(e->type() == QEvent::KeyPress)
      {
        tipka->play();
        tipka->seek(0);
        count++;
        if(count == 30){
            tipka->pause();
            count = 0;
        }
      }
    return false;
}

---

(tipka is Phonon::MediaObject)

what do you want to do?
is it short beep that occurs when the user presses a key, or a longer one?

you cant seek when the sound is in the stopped state, try omitting the seek(0) or use stop() instead.