I confer with the tablet and Win 8.1 audio drivers.
don't waste your time with Samsung I tried to get through. the first was after a custom win 8.1 iso install and getting WLAN Drivers installed. Broadcom drivers were not working and the lady at Samsung said "warranty issue" (even though Win 8.0 works but not 8.1 with no drivers). it was CHIPSET that got that going.
ALSO asking anoterh samsung support lady when to expect a ne driver, they told me that it is warranty issue. it is SAD to have to 'train' their Staff about hardware failure and driver conflicts. Even sad to see how many sent away on warranty 9or spent their own money) to get it replaced and have same issue.
I'm surprised that Samsung has taken so long to get new drivers available.
I left my chat with the lady last time telling them I'll come back and teach them when I find a solution.
Where I am at is NO WIN 8.1 sound driver (Back to clark galbe or charlie chaplin silent movies for a bit) AND have tried a thinkpad tablet driver (using I2S audio codec) was newer version but not working either MAKE RESTORE PINTS ;O) ).
LAST RESORT for the night, contact REALTEK and ask for a stock (unbranded/customized to samsung).
IF i hear back, or if i find a solution in the meantime i'll post answer.
even if realtek has an i2s driver that works till Samsung EVENTUALLY gets around to fixing this.
the longer I wait the less i like Samsung as a future hardware provider for my next device (should have gone for a suface then MS hardware runs the MS Software) :)