User Manual
86 
User's Guide Babyface Pro © RME 
30.2 Class Compliant Mode under Windows and Mac OS X 
On a Windows PC, Class Compliant mode is indicated by a missing “RME“ in the device name 
shown in the Device Manager. In the correct mode (PC) and with installed drivers, the full name 
including RME is shown, without serial number. 
Windows does not support USB Audio 2.0 directly. The Babyface Pro will be detected when in 
CC mode, but automatic driver installation will fail. 
Mac OS X supports Class 
Compliant USB Audio 2.0, 
even with more than 2 
channels. The Babyface offers 
full 12 input and 12 output 
channels at up to 192 kHz. It is 
shown as “Babyface Pro 
(xxxxxxxx)“ in the Audio MIDI 
Setup, in both PC and CC 
mode. In CC mode the USB 
Settings will vanish from the 
Dock, and TotalMix FX will not 
start, or show a ‘disconnected’ 
Babyface Pro. 
The Audio window in the Audio 
MIDI Setup lists two available 
modes: 2 channels and 12 
channels. The sample rate 
shown here as ‘Default’ is the 
one set at the Babyface Pro. 
Alsa (Linux) does not work with USB 2 Class Compliant interfaces at this time, but it seems it 
can be fixed (recompiled) to do so. More information is available here: 
http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg28901.html 










