I dont have Ur Sound Card.But the general way is to update
your Alsa rpms for alsa-drivers,alsa-lib,alsa-utils,libasound2,alsa-kernelmodule-ur kernel version to the latest one available.for rpms U can go to
*www.atrpms.net
Hopefully there may have some bug fixes etc in newer alsa.also after updating alsa,try
alsaconf to configure Audio for You.for multiple sound instances enable sound @ startup with Gnome for gstreamer.adjust sound and recording levels with gnome-volume-control and unmute the relevent one and in preference select ALSA PCM.and finally save your sound settings with
.
Best of LUX