RME Fireface UCX II 40-Channel USB-B Audio/MIDI Interface - Manual (Page 20)

20 User's Guide Fireface UCX II © RME
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Application examples
Pitch allows for a simultaneous change of speed and tune during record and playback. From
alignment to other sources up to creative effects
– everything is possible.
Pitch enables you to intentionally de-tune the complete DAW. This way, the DAW can match
instruments which have a wrong or unchangeable tuning.
7.3 Option WDM Devices
The area WDM Devices gives configuration access, a status display showing the number of
currently enabled WDM devices, and a listbox to choose
Stereo or Multi-Channel devices. The
number represents both record and playback devices, so ‘1’ means one input and one output
device.
WDM streaming is Microsoft's current driver and audio system, directly embedded into the oper-
ating system.
Several programs do not offer any direct device selection. Instead they use the
playback device
selected in Windows under < Control Panel/ Sound/ Playback>.
Activating all 15 stereo devices at once may cause temporary freez ing or ‘not responding’
effects. Therefore activate only the ones which are really needed.
After leaving the dialog with OK the WDM devices are reloaded so Windows sees their new
properties.
Multi-Channel using WDM
The WDM Streaming device Loudspeaker (Analog 1+2) of the RME driver can operate as usual
stereo device, or as up to 8-channel device. 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.
An 8-channel playback using the Windows Media Player requires the speaker setup 7
.1 Sur-
round. Configure as follows: > Control Panel /Sound /Playback /Loudspeaker /Configure <.
8. Operation and Usage
8.1 Playback
In the audio application being used, Fireface UCX II must be selected as output device. This can
often be found in the
Options, Preferences or Settings menus under Playback Device, Audio
Devices, Audio etc.
WDM playback devices are not available if the number of WDM devices is set to 0 in the
Settings dialog.
We recommend switching all system sounds off (via > Control Panel /Sounds <). Although the
Fireface UCX II comes with extensive support for system audio, setting it to be the Default De-
vice for playback could cause problems when working with ASIO.
Increasing the number and/or size of audio buffers may prevent the audio signal from breaking
up, but also increases latency i.e. output is delayed. For synchronized playback of audio and
MIDI (or similar), be sure to activate the checkbox ‘Get position from audio driver’.