Amarok shows my music directories, and its own system sounds are audible. But when I play a track, nothing - no sound at all. The progress bar shows that the track is playing, and the mixer has all volumes cranked to 100%.
I’ve gotten used to Amarok being wretchedly broken in the past, and resigned myself to just switching over to Windows whenever I want to hear something, but I had hoped things had improved with 13.1.
Sound works fine everywhere else. System sounds work perfectly. In Firefox, I can play back audio streams and videos with sound. I can play the test sound in Yast->Hardware->Sound. I can even go to Amarok->Configure Amarok->Playback->Configure Phonon->Audio Hardware Setup and play sounds through the left and right channels. Trying to play a sound from the same place, on the Device Preference tab, however, fails, in the sense that no sound comes out of the speakers, although the Test button stays depressed for a long time while playback - apparently, to the void - occurs.
That shown in red says it’s not an Amarok problem. KDE’s sound test fails to reach the hardware, and you said your volume needs max setting which is abnormal! I agree with wolfi323, and caf4926 has a point. You have volunteered nothing much about your hardware set up.