RME HDSP 9652 [37/75] Hotline troubleshooting

User's Guide HDSP System HDSP 9652 © RME

21.6 Various Information

The driver requires 10.2.8 or higher. Older versions of OS X are not and will not be supported.

Via >System Preferences/ Audio-MIDI Setup< the hardware can be configured for the system

wide usage. Programs that don't support card or channel selection will use the device selected

as Standard-Input and Standard-Output. (Soundstudio, Mplayer, Amplitube etc.).

In the lower part of the window, the audio hardware's capabilities are shown and can be

changed in some cases. On the record side no changes are possible. Programs that don't sup-

port channel selection will always use channels 1/2, the first stereo pair. To access other inputs

use the following workaround with TotalMix and a loopback cable (see chapter 26.5): route the

desired input signal to output channels 1/2. Plug a cable from output ADAT1 to input ADAT1.

Check valid clock mode! Result: the desired input signal is now available at input channel 1/2,

without further delay/latency.

Since OS X 10.3 playback can be configured freely and to any of the available playback chan-

nels. This is done via Speaker Setup. Even multichannel playback (Surround, DVD Player) can

be set up easily.

OS X supports more than one audio device. 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.

21. Hotline – Troubleshooting

The newest information can always be found on our website www.rme-audio.com, section Sup-

port, Macintosh OS.

The 8 ADAT channels 1-8 don’t seem to work

• The optical output ADAT1 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.

• 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?