User's Guide
DIGI96/8 PRO © RME
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8.5 Record while Play
DIGI96/8 PRO
allows the playback of audio data during the recording of further audio
data, even at different sample frequencies. This feature, known as
Enhanced Full Duplex
or
Record while play
, is a must for multitrack harddisk recording, but it has to be supported by the
recording software.
8.6 DVD-Playback (AC-3/DTS) under MME
When using popular DVD software player like WinDVD and PowerDVD, their audio data stream
can be send to any AC-3/DTS capable receiver, using the DIGI96 series' SPDIF output. For this
to work the DIGI96 output wave device has to be selected in 'Control Panel/Sounds and Multi-
media/Audio'. Also check 'use preferred device only'.
You will notice that the DVD software's audio properties now allow to use 'SPDIF Out' or to
'activate SPDIF output'. When selecting these, the software will transfer the non-decoded digi-
tal multichannel data stream using the RME card.
This 'SPDIF' signal sounds like chopped noise at highest level. Therefore check 'Non-audio' in
the card's Settings dialog, to prevent most SPDIF receivers from accepting the signal, and to
prevent any attached equipment from being damaged.
Setting the card to be used as system playback device is against common sense, as profes-
sional cards are not specialized to play back system sounds, and shouldn't be disturbed by
system events. To prevent this, be sure to re-assign this setting after usage, or to disable any
system sounds (tab Sounds, scheme 'No audio').
Note: The DVD player will be synced backwards from the RME card. This means when using
AutoSync and/or word clock, the playback speed and pitch follows the incoming clock signal.
