User Manual
User's Guide Fireface UC © RME
27
13. Operation under ASIO
13.1 General
Start the ASIO software and select ASIO Fireface UC as the audio I/O device.
Fireface UC supports
ASIO Direct Monitoring
(ADM). Please note that
currently Nuendo,
Cubase and Logic either
do not support ADM
completely or error-free.
The most often reported
problem is the wrong
behaviour of panorama
in a stereo channel.
When the sample fre-
quency is set to 88.2 or
96 kHz, the number of
ASIO ADAT channels is
reduced to 4. At a sam-
ple rate of 176.4 or 192
kHz (Quad Speed
Mode) the ADAT I/O is
no longer available. Nevertheless it will send out a synchronized ADAT signal at a quarter of the
sample rate. The ASIO driver corrects the number of channels when changing from Single to
Double or Quad Speed. The channel situation is explained in chapter 13.2.
Please note that when changing the sample rate range between Single, Double and Quad
Speed the number of channels presented from the ASIO driver will change too. This may re-
quire a reset of the I/O list in the audio software.
In case of a drift between audio and MIDI, or in case of a fixed deviation (MIDI notes placed
close before or behind the correct position), the settings in Cubase/Nuendo have to be
changed. At the time of print the option 'Use System Timestamp' should be activated. The Fire-
face UC supports both MME MIDI and DirectMusic MIDI. It depends on the used application
which one will work better.