User`s guide

User's Guide DIGI32 © RME
8
8.3 Playback (Windows MME)
DIGI32 can play back audio data only in supported formats (sample rate, bit resolution).
Otherwise an error message appears (for example at 22 kHz and 8 bit).
In the audio application being used, DIGI32 must be selected as the output device. This can
often be found in the Options, Preferences or Settings menus under Playback Device, Audio
Devices, Audio etc. Only a few programs exclusively use Windows' Preferred Playback Device.
This setting can be changed in >Control Panel /Multimedia /Audio<. We recommend using 24-
bit resolution for playback to use the DIGI32 series fullest potential.
We strongly recommend switching all system sounds off (via >Control Panel /Sounds<). Also
DIGI32 should not be the Preferred Device for playback, as this could cause loss of syn-
chronization and unwanted noises. If you feel you cannot do without system sounds, you should
consider buying a cheap Blaster clone and select this as Preferred Device in >Control Panel
/Multimedia /Audio<.
The RME Driver CD includes step by step instructions for configuring many popular audio ap-
plications. Start setup.htm or setup2.htm (in the \rmeaudio.web\techinfo\ directory).
The picture to the right
shows the smallest buffer
setting for a crackle-free 24
bit operation in a computer
with 200 MHz.
More or larger buffers pro-
duce an even higher defen-
ce against distur-bance, but
also cause a longer delay in
playing back the data. In
case of synchronized audio
to MIDI playback be sure to
activate the checkbox 'Get
play position from audio
driver' when available in
your program. Because the
DIGI32 reports the actual
play position correct (even
in record where this is nec-
cessary for chase lock sync)
there will be no sync prob-
lems when working in a mixed audio/MIDI environment even with higher buffer settings.