[System] No sound in players after kubuntu 13.04 installation?

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http://www.kubuntuforums.net – I reinstalled the kubuntu 13.04 and then full-upgrade but now there is no sound in players when play a media file, i use the usb sound card, in the Kmix in Phonon-KDE Control Module in Sound and Video configuration window the correct usb sound card is selected, and there is test sound in the Device preferences -> Audio playback music. And in the Audio Hardware Setup there is sound with click on the Front Right speaker but not in Front Left speaker. This is the play -L command output: Quote: # aplay -l **** List of PLAYBACK Hardware Devices **** card 0: I82801DBICH4 [In (HowTos)