RME Audio Babyface User Manual - page 5
RME Tech Info Babyface Class Compliant
5
Class Compliant Mode under Windows, Mac OS X and Linux
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 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 will be detected when in CC mode,
but automatic driver installation will fail. This is important to remember. Connecting it to the PC one
day after having it used with the iPad one might forget that it is still in CC mode (although the rising
level meters during power on show exactly that). You might end up with hours of wasted time trying to
repair your driver installation – when all you need to do is set the unit back to normal mode.
Mac OSX supports USB Audio 2.0, even
with more than 2 channels. The
Babyface offers full 10 input and 12
output channels at up to 192 kHz. It is
shown as “Babyface (xxxxxxxx)“ in the
Audio MIDI Setup, in both normal and
CC mode. In CC mode the USB Settings
will vanish from the Dock, and TotalMix
will – if at all – show a ‘disconnected’
Babyface.
The Audio window in the Audio MIDI
Setup lists two available modes: 2
channels and 10/12 channels. The
sample rate shown here as ‘Default’ is
the one set at the Babyface.
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