Channel Count Under Wdm; Multi-Client Operation - RME Audio HDSPe AIO Pro User Manual

Note 1: Selecting the AIO Pro to be used as system playback device is against our recommen-
dation, as professional interfaces should not be disturbed by system events. Make sure to re-
assign the selection after usage or to disable any system sounds (tab Sounds, scheme 'No au-
dio').
Note 2: The DVD player will be synced backwards from the AIO Pro. This means when using
AutoSync and/or word clock, the playback speed and pitch follows the incoming clock signal.

9.3 Channel Count under WDM

The HDSPe's ADAT optical interfaces allow to record sample rates of up to 192 kHz using a
standard ADAT recorder. For this to work single-channel data is spread to two or four ADAT
channels using the Sample Multiplexing technique. This reduces the number of available ADAT
channels from 8 to 4 or 2 per ADAT port.
WDM Stereo device
AIO Analog (1+2)
AIO Phones*
AIO AES
AIO SPDIF
AIO ADAT (1+2)
AIO ADAT (3+4)
AIO ADAT (5+6)
AIO ADAT (7+8)
* Phones output, playback only.

9.4 Multi-client Operation

RME audio interfaces support multi-client operation. Several programs can be used at the same
time. The formats ASIO and WDM can even be used on the same playback channels simulta-
neously. As WDM uses a real-time sample rate conversion (ASIO does not), all active ASIO
software has to use the same sample rate.
However, a better overview is maintained by using the channels exclusively. This is no limitation
at all, because TotalMix allows for any output routing, and therefore a playback of multiple soft-
ware on the same hardware outputs.
Inputs can be used from an unlimited number of WDM and ASIO software at the same time, as
the driver simply sends the data to all applications simultaneously.
RME's sophisticated tool DIGICheck operates like an ASIO host, using a special technique to
access playback channels directly. Therefore DIGICheck is able to analyse and display playback
data from any software, no matter which format it uses.
20
Double Speed
AIO Analog (1+2)
AIO Phones*
AIO AES
AIO SPDIF
AIO ADAT (1+2)
AIO ADAT (3+4)
AIO ADAT (5+6)
AIO ADAT (7+8)
User's Guide HDSPe AIO Pro © RME
Quad Speed
AIO Analog (1+2)
AIO Phones*
AIO AES
AIO SPDIF
AIO ADAT (1+2)
AIO ADAT (3+4)
AIO ADAT (5+6)
AIO ADAT (7+8)