FreeBSD has some new support in testing for SB 10k cards.

Here is just a small sample of the many changes.

Changes over emu10k1 driver:

1. Almost all Creative cards that based on EMU10K1 and CA010X-YYY DSPs are
supported. Exceptions are cards on CA010X-DAT (”Sound Blaster Live!
24-bit”, card known as “DELL OEM SB Live!” and “Audigy LS”) and E-mu
cards.
2. Complete mixer support. Some controls that can’t fit into OSS
mixer are available as sysctl under debug.emu10kxX.
3. Optional multichannel support. Front, rear, center, subwoofer and side
card connectors are visible as a separate PCM devices. Only front channel
supports recording, other are playback-only. There is no lowpass filter on
subwoofer output.
4. Optional MIDI I/O support, one midi port on Live! cards and two on
Audigy (and Audigy 2). MIDI support require “evennewermidi” kernel patch.