Yes, that's why I stopped buying PC speakers and started buying HT speakers instead. Much more bang for the buck, imho. Sure, it might not make much difference in games. But a PC is not just for games. And since most audio is already lossily compressed, the 2nd round of compression just degrades quality even more.Are you serious?
Your completely missing the point, we are talking about game sound, not a high-end playback of a music recording of the royal symphony, doing Beethoven's Symphony No. 5.
DDLs 640Kbit/s has about 3x as mouths bandwidth as DVDs most common used AC3 at 192Kbit/s bitrate, and ware 384Kbit/s the max is.
Most people don't even hear the difference between 64Kbit/s and 128Kbit/s MP3s, and DDL is just used for game sound.
And most audio samples used for games are max 128Kbit/s, so i really don't get your point, as i still take DDL playback over analog.
And sound quality is for 90% dependable on your speakers and amp, and guise what, most reasonable prices "Home Cinema Receiver Systems" win any day over evenly priced PC audio sets, and guise what again, most of them have no 6ch input but only S/PDIF in.
Many PCIe cards out there utilize a PCIe-PCI bridge internally, anyway.