User manual MOTU 896HD

[. . . ] MOTU 896HD User’s Guide for Windows ™ 1280 Massachusetts Avenue Cambridge, MA 02138 Business voice: (617) 576-2760 Business fax: (617) 576-3609 Technical support: (617) 576-3066 Tech support fax: (617) 354-3068 Tech support email: techsupport@motu. com Web site: www. motu. com SAFETY PRECAUTIONS AND ELECTRICAL REQUIREMENTS WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR OTHER MOISTURE. CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. WARNING: DO NOT PERMIT FINGERS TO TOUCH THE TERMINALS OF PLUGS WHEN INSTALLING OR REMOVING THE PLUG TO OR FROM THE OUTLET. [. . . ] The 896HD can operate at 44. 1 (the standard rate for compact disc audio), 48, 88. 2, 96, 176. 4 or 192KHz. If you are operating at a sample rate between 44. 1 and 96kHz, make absolutely sure that all of the devices connected digitally to the 896HD match the 896HD’s sample rate. Also make sure that your Digital Timepiece, MIDI Timepiece AV or other digital audio synchronizer matches it as well. At the 4x sample rates (176. 4 or 192kHz), all digital I/O on the 896HD is disabled. Operation at 4x sample rates (176. 4 or 192kHz) At the 4x sample rates (176. 4 or 192kHz), operation of the 896HD is restricted, due to the higher audio bandwidth demands, as follows: ■ All digital I/O is disabled (there is no optical and no AES/EBU input/output). ■ The 896HD provides 8 channels of analog input and 10 channels of analog output (8 XLR outputs plus stereo headphone out), simultaneously. ■ CueMix DSP supports 2 independent monitor mixes (instead of 4, as with the lower sample rates). For details about CueMix DSP, see chapter 9, “CueMix Console” (page 65). ■ The Mix1 input, as described in “Mix1 1-2” on page 64, is not available. ☛ Mismatched sample rates cause distortion and crackling. If you hear this sort of thing, check the sample rate settings in your hardware and here in the MOTU FireWire Audio Console. Figure 5-1: The MOTU FireWire Audio Console gives you access to all of the settings in the 896HD hardware. 36 MOTU FIREWIRE AUDIO CONSOLE ■ The headphone output can be assigned to any analog output pair or the Phones setting (as described in “Phones” on page 40). But at the 4x sample rates, the Phones output is not available from the computer. Instead, it is only available as a destination for the two CueMix DSP mixes. In other words, it can only take CueMix inputs. In this case, you would set the 896HD clock source setting to ADAT 9-pin, as described below. AES/EBU The AES/EBU clock source setting refers to the AES/EBU input connector on the 896HD. This setting allows the MOTU 896HD to slave to another AES/EBU device. Use this setting whenever you are recording input from a DAT deck or other AES/EBU device into the 896HD. It is not necessary in the opposite direction (when you are transferring from the 896HD to the DAT machine). For further details about this setting, see “Syncing AES/EBU devices” on page 28. Word Clock In The Word Clock In setting refers to the Word Clock In BNC connector on the 896HD rear panel. Choosing this setting allows the 896HD to slave to an external word clock source, such as the word clock output from a digital mixer. ADAT 9-pin The ADAT 9-pin clock source setting refers to the ADAT digital audio synchronization format. It allows the 896HD to slave to an ADAT — or ADAT sync chain — via its ADAT sync 9-pin connector. [. . . ] Reinstall the 896HD software and choose only to install the MOTU FireWire ASIO driver, not the WDM Driver. ‘New hardware detected’ window If you connect your 896HD before running the 896HD Software Installer CD, Windows will prompt you that new hardware has been detected. Cancel this, and run the 896HD Software Installer, rather than allowing Windows to locate the drivers. Audio in SONAR speeds up or slows down This could be caused by having incorrect SMPTE/ MTC Sync settings when you record audio into Sonar. [. . . ]