RME Audio Babyface Pro, Руководство пользователя

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User's Guide Babyface Pro © RME 35
17.5 Various Information
The driver of the Babyface Pro requires at least Mac OS 10.6.
Programs that don't support card or channel selection will use the device chosen as
Input
and
Output
in the
System Preferences – Sound
panel.
Via
Launchpad – Other – Audio MIDI Setup
the Babyface Pro can be configured for the sys-
tem wide usage in more detail.
Programs that don't support channel selection will always use channels 1/2, the first stereo pair.
To access other inputs, use the following workaround with TotalMix: route the desired input
signal to output channels 1/2. In the channel settings of outputs 1/2 activate
Loopback
. Result:
the desired input signal is now available at input channel 1/2, without further delay/latency.
Use
Configure Speakers
to freely configure the stereo or multichannel playback to any avail-
able channels.
18. Using more than one Babyface Pro
OS X supports the usage of more than one audio device within an audio software. This is done
via the Core Audio function
Aggregate Devices
, which allows to combine several devices into
one. All units have to be in sync, i.e. have to receive valid sync information via a digital input
signal.
•
If one of the devices is set to clock mode Master, all others have to be set to clock mode
Slave, and have to be synced from the master by feeding ADAT or SPDIF. The clock
modes of all units have to be set up correctly in their Settings dialog.
•
If all units are fed with a synchronous clock, i.e. all units show
Sync
in their Settings dialog,
all channels can be used at once.
Note: TotalMix is part of the hardware of each device. Up to three mixers are available, but
these are separated and can't interchange data. Therefore a global mixer for all units is not
possible.
In real-world an operation of more than one Babyface Pro seems not very useful. The second
unit must be synchronized using the optical input. The result is an extension by only 4 analog
record and 4 analog playback channels (plus 8 digital via ADAT Out). It makes much more
sense to directly connect an 8-channel converter to the ADAT I/O of one Babyface Pro, adding
full 8 analog channels of record and playback.
On the other hand the second unit can even be used stand-alone, without any USB connection,
and might serve as an emergency replacement in case the main unit fails.