Hotline - Troubleshooting - RME Audio Digiface AES User Manual

12. Hotline – Troubleshooting
The newest information can always be found on our website www.rme-audio.com, section FAQ,
Latest Additions.
The 8 ADAT channels don't show up at the optical output
 The optical output has been switched to 'SPDIF'. The ADAT playback devices are still usable
by routing and mixing them in TotalMix to other outputs.
Playback works, but record doesn't
 Check that there is a valid signal at the input. If so, the current sample frequency is displayed
in the Settings dialog.
 Check whether the Digiface AES has been selected as recording device in the audio applica-
tion.
 Check whether the sample frequency set in the audio application ('Recording properties' or
similar) matches the input signal.
 Check that cables/devices have not been connected in a closed loop. If so, set the system's
clock mode to Master.
Crackle during record or playback
 Increase the number and size of buffers in the 'Settings' dialog or in the application.
 Try different cables (coaxial or optical) to rule out any defects here.
 Check that cables/devices have not been connected in a closed loop. If so, set the system's
clock mode to 'Master'.
 Check the Settings dialog for displayed Errors.
Driver installation and Settings dialog/TotalMix work, but a playback or record is not possible

While recognition and control of the device are low bandwidth applications, playback/record
needs the full transmission performance. Therefore, defective USB cables with limited trans-
mission bandwidth can cause such an error scheme.
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User's Guide Digiface AES © RME