User`s guide
16 
User's Guide HDSPe MADI FX © RME 
11.2 Option WDM Devices 
The WDM Devices configuration has one button to enter the edit dialog, a status display show-
ing the number of currently enabled WDM devices, and a listbox to select between Stereo or 
Multi-Channel devices. 
The number represents both record and 
playback devices, so ‘1’ means one input 
and one output device. 
The screenshot to the right shows the 
stereo WDM devices available with the 
MADI FX, and that only MADI 1/2 has been 
activated. Any number can be activated. 
Also only higher numbered devices might 
be active. For example using the MADI 2 
output for system based audio does not 
require to activate all 32 stereo devices of 
MADI 1. Only MADI 65+66 will show up in 
the Windows Sound control panel. 
The checkbox All to the right allows for a 
quick check/uncheck of all devices. 
Warning! Activating all 98 stereo devices 
will most probably freeze your computer! 
Activate only the ones which are really 
needed! 
The screenshot to the left shows the multi-
channel WDM devices available with the 
MADI FX after selecting ‘Multi-Channel’ in 
the WDM Devices listbox and hitting WDM 
Configure. In this example the devices 
MADI 1 to 8 and MADI 65 to 72 are active. 
Using a multi-channel WDM device allows 
for the use of multi-channel playback with 
specialized software as well as Surround 
sound from DVD or Blu-Ray player 
software. 
Please note that configuring the WDM 
device to a specific surround mode in the 
control panel Sound requires the device to 
have the Speaker property. See next page. 
Again the checkbox All to the right allows 
for a quick check/uncheck of all devices. 










