User manual RME DIGIFACE

[. . . ] User's Guide - Macintosh Hammerfall® DSP System Digiface TotalMix 24 Bit / 96 kHz ü SyncAlign ® TM ZLM ® SyncCheck ® PCI Busmaster Digital I/O System PCI and CardBus Interface 2 + 24 Channels Stereo / ADAT Interface 24 Bit / 96 kHz Analog Stereo Monitor ADAT Sync In Contents Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 System Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Brief Description and Characteristics . . . . . . . . . . . . . . . . . . . [. . . ] If the first track is missing while recording multiple tracks, or the error message `Audio: Record Error' appears, the disk sub-system is too slow i. e. it is unable to write the audio data to the disk quickly enough. The problem can almost always be remedied by changing `Disk Block Buffer Size' from the default 64kB to 256kB. This is especially true if you want to record more than 12 tracks at the same time. 26 tracks are only possible after changing `Disk Block Buffer Size' to 256kB (depending on your computer). Please note that these parameters are only updated after clicking on `Apply'. User's Guide HDSP System Digiface © RME 16 The heyday of (expensive) SCSI hard disks in high-speed audio workstations is over. Today's cheap high-capacity EIDE disks allow continuous transfer rates of well over 10 MB per second. In practical terms, this is more than enough to record up to 24 simultaneous tracks using Cubase and Hammerfall!The Buffer Size value in Hammerfall DSP's Settings dialog determines the latency (in this case the delay) between the audio application and the HDSP as well as general system stability. The higher the value, the more tracks can be recorded and played back simultaneously and the longer the system takes to react. At the given maximum of about 0. 2 seconds, you will not notice much delay at all - the system will still respond quickly and smoothly. 13. 3 Synchronization To achieve sample-accuracy between the ADAT recorder and Hammerfall DSP while running Cubase, connect the ADAT sync output with the 9pin D-type sync input of the HDSP. The `Time Code' field in the Settings dialogue should now show the same position as the ADAT recorder. Double-clicking on the Sync button in Cubase's transport panel will open the `Synchronization' dialog. Select ASIO 2. 0 as the timecode base (under Sync Source), confirm the dialog with `OK', then activate Sync mode by (single) clicking on the Sync button. Cubase does not respond when the ADAT is set to `Play', please try the following: · · · · · · Check the cables Switch Sync off and on again (in Cubase's transport panel) Select `Reset Devices' from the Options menu. Switch on the ADAT recorder(s) before starting Cubase Use the BRC as Master and send its word clock to all other devices Use the Clock Mode ADAT Sync 13. 4 Known Problems In case the used computer has no sufficient CPU-power and/or sufficient PCI-bus transfer rates, then drop outs, crackling and noise will appear. We also recommend to deactivate all PlugIns to verify that these are not the reason for such effects. Another common source of trouble is incorrect synchronization. ASIO does not support asynchronous operation, which means that the input and output signals must not only have the same sample frequency, but they must also be in sync. All devices connected to the Hammerfall DSP must be properly configured for Full Duplex operation. As long as SyncCheck (in the Settings dialog) only displays 'Lock' instead of 'Sync', the devices have not been set up properly! User's Guide HDSP System Digiface © RME 17 14. TotalMix: Routing and Monitoring The Hammerfall DSP system includes a powerful digital real-time mixer. [. . . ] Alesis and ADAT are registered trademarks of Alesis Corp. ADAT optical is a trademark of Alesis Corp. Microsoft, Windows, Windows 98/2000/XP are registered trademarks or trademarks of Microsoft Corp. Apple and MacOS are registered trademarks of Apple Computer Inc. [. . . ]