User:Woozle/M-Audio Delta 66
This is about trying to use the M-Audio Delta 66 multitrack audio ADAC in Linux. This apparently uses the Envy24 chipset, for which there are drivers.
As of 2017, the Envy24 drivers are part of the standard distro and seem to work pretty well. There are two different control panels (approximately replicating the functionality of the one provided by M-Audio for Windows); "Mudita24" did not seem to work right, but "Envy24 Control Utility" (E24CU for short) more or less does -- as far as I can tell what it is supposed to be doing, anyway.
Envy 24 Control Utility
I'll do a quick rundown of what I do understand in the E24CU, by tab.
Monitor Inputs
This shows what's coming into the various inputs, and also lets you adjust their levels within the stereo "digital mix".
The D66 has 4 analog inputs on the breakout box and a pair for S/PDIF on the card; this panel displays those as H/W In 1, H/W In 2, H/W In 3, H/W In 4, SPDIF In L, and SPDIF In R. Pretty straightforward.
Monitor PCMs
This one, I pretty much don't get. There are 8 pairs, labeled PCM Out 1 through PCM Out 8. There are volume sliders for L and R in each pair, but nothing seems to affect anything else.
Patchbay / Router
This one mostly makes sense.