Well, anyway, this bit of information you've provided on DMA channel used seemed quite interesting, so I decided to investigate this with my own computer.
First thing I noticed was that while for Sound Blaster compatible cards one could select DMA channel in SETUP.EXE, there was no such choice with WSS. I was curious what was happening under the hood, so I modified FILE0001.EXE to print out DMA channel instead of codec version information. I was able to confirm thus, that while for Sound Blaster the value provided by SETUP.EXE was used, for WSS it was DMA 0, in accordance with what you've written. Then I was able to confirm that for WSS DMA channel number included in TYRIAN.CFG was ignored.
So I borrowed Sound Blaster DMA configuration routine for DMA 1, and copied it to be used by WSS-related code. The result was DMA 1 selected, and sound being played via WSS.
Going to prepare a PatchMaker patch file, and will include with this post later.
One last observation I have is that while changing WSS base address via my sound card setup program seems to work with Tyrian,
SETUP.EXE hangs at startup unless default 0x530 address is configured. Again, setting up sound for WSS via SETUP.EXE while it's configured for 0x530 and THEN switching the card to a different address works, but not the other way around.
UPD:
Attached the patch.
GA-G41M-Combo G41/ICH7 - Core 2 Quad Q9550 - DDR3 1033 - Radeon RX570 - YMF744 (Cobra) - X3MB (Buran)
Beetle/M/i815+ICH2 - Celeron 566Mhz - Opti 924 (Typhoon Media)