User manual M-AUDIO DELTA RBUS

[. . . ] . 60 1 Introduction Congratulations on your purchase of the Delta R-BUS PCI Audio Card designed and built by M Audio. R-BUS is a 24-bit, 8-channel format created by the Roland Corporation, and is compatible with R-BUS equipped products such as Roland's VM-7000 Series and VM-3100 Pro V-Mixers, VS-2480 24track Digital Studio Workstation, VSR-880 Digital Studio Recorder and XV5080 128-Voice Synthesizer/Sample Playback Module. Even if you are experienced in digital recording, please take the time to read this manual. It will give you valuable information on installing your new card and the supporting software, plus help you to fully understand the function and usability of the Delta R-BUS. [. . . ] Some programs interpret Direct Monitoring differently, and may result in undesirable configurations for monitoring. Emagic's Logic program, in particular, will switch the Patchbay/Router into "Monitor Mixer" mode when Logic is switched into record. You may want to click on this switch when using Logic , thereby disengaging its control over the Patchbay/Router. ON THE MAC: The Hardware Settings Page in the Macintosh version of the Delta Control Panel also contains software switches that allow you to select which Delta input and output stereo pair will be used by the Sound 29 Manager, if and when you choose the Delta as the Sound Manager input and output device. If you go to the Apple menu | Control Panel |Sounds and highlight the Delta icon for Sound In and Sound Out, then your Apple system sounds will be routed to the Delta hardware output that you have selected here, and Alert Sounds, if you choose to record, will receive their input from the Delta hardware input that you select here. You will want to choose the Delta for input and output in the Sound control panel if your music program does not use ASIO and the Delta ASIO drivers. If you are using the ASIO drivers (see Mac Software Installation), then leave the Sound control panel selection set to "builtin. " With the Sound control panel set to built-in, these Sound Manager settings in the Delta Control Panel will have no effect. The Sound Manager driver limits you to using only one of the Delta R-BUS stereo input pairs for audio input and only one of the stereo output pairs for output. These do not need to be matched pairs- you can use inputs 1&2 for Sound In and S/PDIF for Sound Out, for example, or any combination that you choose. The following screen shot shows the Hardware Settings page on the Mac with the Sound Manager I/O set to "SP/ANA" for Input and "SP/ANA" for Output. Once you have made a selection, go to the File menu and "Save as Preferences. " S/PDIF Page The S/PDIF page of the Delta Control Panel configures the S/PDIF output format and displays the status of the S/PDIF input. To display this page, click the "S/PDIF" tab of the Delta Control Panel software. DIGITAL INPUT This group box displays the current S/PDIF input status. The Delta 30 R-BUS's S/PDIF receiver is capable of recognizing a valid input signal versus an invalid, corrupt or non-present one. When a valid signal is detected at S/PDIF In, this group box displays "Valid Input Detected. " When an invalid signal is detected or no signal is present, the group box displays "Invalid or Not Present. " Below this message are two `grayedout' buttons: "Coax(RCA)" and "Optical. " These are functions of the Delta DiO 2496, another product in the M Audio Delta line, one with both optical and coaxial S/PDIF inputs. DIGITAL OUTPUT FORMAT Within the "Digital Output Format" group, you choose the digital audio format of the S/PDIF output. The default setting, "Consumer, " is a true S/PDIF format and is recognized by all consumer devices. The alternate "Professional" setting is an AES/EBU type data stream, but electrically S/PDIF. This is a work-around that is recognized by some but not all AES/EBU devices. For both consumer and professional output formats, the "Advanced" checkbox will allow you to force a few particular status bits in the outgoing S/PDIF signal. The advanced option is for expert users only; however, if you decide to go exploring, change a few bit settings and get lost, you can always select the "Restore Defaults" button to restore the outgoing status bits to their factory settings. When "Consumer" and "Advanced" are both selected, the group "Consumer Format Advanced Settings" will appear. [. . . ] The monitor mixer is a digital device that runs at the current sample rate of the Delta R-BUS board. The frequency response of the mixer is roughly one-half of the sample rate. There is no way to prevent this lost frequency response while playing back or recording at a low sample rate. See the "CODEC SAMPLE RATE" paragraph of the section `Hardware Settings Page' for more information. 58 Appendix A - Technical Specs Analog Audio Peak Analog Signal: +2dBV(consumer setting), -2dBV(-10 setting). [. . . ]