Hotline - Troubleshooting - RME Audio Multiface User Manual

Multicard Operation
OS X supports more than one audio device. Their simultaneous usage within one program had
been limited to Motu's Digital Performer until 10.3.9. Since 10.4 (Tiger) Core Audio offers the
function Aggregate Devices, which allows to combine several devices into one, so that a
multi-device operation is now possible with any software.
The Hammerfall DSP driver adds a number to each unit, so they are fully accessible in any
multicard-capable software.
22. Hotline – Troubleshooting
The newest information can always be found on our website www.rme-audio.com, section Sup-
port, Macintosh OS.
Playback works, but record doesn't:
Check that there is a valid signal at the input.
Check whether the Hammerfall DSP has been selected as recording device in the audio
application.
Crackle during record or playback:
Increase the number and size of buffers in the application.
Try different cables to rule out any defects here.
The card and drivers have been installed correctly, but playback does not work:
Is Hammerfall DSP listed in the System Profiler/PCI? (Vendor 10EE, Device ID 3FC5).
Has Hammerfall DSP been selected as current playback device in the audio application?
User's Guide HDSP System Multiface © RME
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