Avid Technology HD OMNI Manual
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Avid Technology HD OMNI Manual

Version 8.1 professional digital audio interface for use with pro tools|hd systems
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HD OMNI Guide
Version 8.1

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  • Page 1 HD OMNI Guide Version 8.1...
  • Page 2 Bruno, C|24, Command|8, Control|24, D-Command, D-Control, D-Fi, D-fx, D-Show, D-Verb, DAE, Digi 002, DigiBase, DigiDelivery, Digidesign, Digidesign Audio Engine, Digidesign Intelligent Noise Reduction, Digidesign TDM Bus, DigiDrive, DigiRack, DigiTest, DigiTranslator, DINR, D-Show, DV Toolkit, EditPack, Eleven, HD Core, HD Process, Hybrid, Impact,...

  • Page 3: Table Of Contents

    HD OMNI Back Panel........
  • Page 4 ..............59 HD OMNI Guide...

  • Page 5: Chapter 1. Introduction

    1 Introduction HD OMNI is a professional digital audio inter- • Soft Clip and Curv limiting circuits to protect ® face designed for use with Pro Tools|HD against clipping on analog input. systems. HD OMNI provides a compact preamp, •...

  • Page 6: What's Included

    Pro Tools for headphone monitoring from the front panel headphone jack HD OMNI requires a qualified Pro Tools|HD sys- tem. Pro Tools HD supports only one HD OMNI • Front panel Control Room (MAIN/ALT) and per system. Headphone monitoring volume control •...

  • Page 7: About Www.avid.com

    Conventions Used in This Guide About www.avid.com All of our guides use the following conventions The Avid website (www.avid.com) is your best to indicate menu choices and key commands: online source for information to help you get the most out of your Pro Tools system. The fol- Convention Action lowing are just a few of the services and features...
  • Page 8 HD OMNI Guide...

  • Page 9: Chapter 2. Hd Omni Overview

    2 HD OMNI Overview This chapter provides an overview of the front and back panel features of HD OMNI. If you are installing your Pro Tools|HD system for the first time, see the Pro Tools|HD User Guide for complete system installation and configuration instructions. If you are adding the HD OMNI to an existing system, see the Expanded Systems Guide .

  • Page 10: Preamp Controls

    Channels 1 and 2 by pressing the PREAMP En- the MIC/INST inputs do not change level coder to select the desired channel. when LINE is selected, so you can easily re- vert back to MIC or INST input. HD OMNI Guide...
  • Page 11 Setup (see “Pro Tools Hardware Setup” on ent, the difference is maintained when changed page 23) or on HD OMNI in SETUP mode (see the levels until an upper or lower limit (+10 or “Clock Source (CLOCK)” on page 45).
  • Page 12 When synchronized to Word Clock, External LOOP Indicates that the HD OMNI is slaving to Clock input and output do not have to be at the another Pro Tools|HD audio interface using Word clock rate. At 44.1 kHz and 48 kHz, EXT Loop Sync.
  • Page 13 (see also “CUE 1–2” on page 39). signed in the Pro Tools Hardware Setup. A signal that meters at 0 on the HD OMNI will not necessarily clip; use the on-screen meters in Pro Tools to determine whether a signal is clipping.
  • Page 14 The LED lights when MUTE is enabled. page 9). When power cycling HD OMNI, MUTE is The HD OMNI Headphone output also lets you temporarily engaged automatically to pro- monitor greater than stereo format sessions, in tect the monitor outputs for the Control two different ways: passing the Left and Right Room monitor paths declared in Pro Tools.

  • Page 15: Hd Omni Back Panel

    HD OMNI Back Panel The HD OMNI has the following back panel features: HD OMNI Back Panel Analog Inputs SEND and RTN 1 and 2 HD OMNI provides two discrete hardware sends HD OMNI provides up to four channels of si- and returns.

  • Page 16: Analog Outputs

    Single Wire mode. Hardware Setup dialog (see “Analog Out” on For a pinout diagram for the AES/EBU DB- page 26) or on HD OMNI in SETUP mode (see 25 connector, see Appendix A, “Pinout Dia- “TRS Output Mirrors (TRSOUT)” on page 43) grams for the DB-25 Connectors.”...
  • Page 17 (S/PDIF) option can be selected in the Optical (TOSLINK) input and output. The Opti- Pro Tools Hardware Setup dialog. cal I/O on HD OMNI supports up to 24-bit au- dio, at sample rates up to 192 kHz. The number About Lightpipe-Compatible Devices...
  • Page 18 192 kHz sessions (sold sepa- connected to a Pro Tools|HD card (it is not avail- rately) able when the HD OMNI is connected to the EX- PANSION PORT on another audio interface). • 100’ (30.5m), the maximum length sup-...
  • Page 19 BNC connectors that output a 1x Word clock signal. These ports can be used to synchronize signal. Loop Sync should only be used to chain HD OMNI with any word clock-capable device. multiple Pro Tools|HD peripherals together (au- dio interfaces and SYNC HD or SYNC I/O).
  • Page 20 HD OMNI Guide...

  • Page 21: Chapter 3. Connecting Hd Omni

    3 Connecting HD OMNI To connect HD OMNI to a Pro Tools|HD system, do Pro Tools|HD Systems one of the following: Connect HD OMNI Primary Port to the Digi- HD OMNI provides up to eight channels of ana- Link Port on the Pro Tools|HD Accel Core card...
  • Page 22 12-foot DigiLink cable with a DigiLink to DigiLink Mini adapter Figure 1. HD OMNI connected to the DigiLink Port on a Pro Tools|HD Core card (8-channel system) Connect additional HD audio interfaces to ad- To connect additional Pro Tools|HD Audio Interfaces to a Pro Tools|HD system: ditional Pro Tools|HD Accel cards.
  • Page 23 Pro Tools|HD Accel card Figure 2. HD OMNI connected to the DigiLink Port on a Pro Tools|HD Core card and HD I/O connected to the DigiLink Mini Expansion port on HD OMNI. A second HD I/O is connected to the DigiLink Port on a Pro Tools|HD Accel card with a third HD I/O connected to the Expansion port on the second HD I/O.

  • Page 24: Example Studio Connections

    HD OMNI. Note that the line level inputs are only available on the back panel. HD OMNI provides DB-25 breakout connectors for analog and AES/EBU output. Avid sells several different DigiSnake DB-25 cables for these purposes.
  • Page 25 Optical in/out to ADAT Digital Inputs/Outputs Analog to DAT recorder Output Hardware Inserts Power Amp and Speakers Figure 4. Example studio configuration using HD OMNI, back panel connections shown Chapter 3: Connecting HD OMNI...
  • Page 26 HD OMNI Guide...

  • Page 27: Chapter 4. Configuring Hd Omni In Pro Tools

    (see “Mixer” on page 34). also lets you configure some of the same settings Continue by configuring any other HD audio as in Setup mode on HD OMNI (see Chapter 5, interfaces connected to your system. “SETUP Mode”). In addition to the standard Main, Analog In, and Analog Out tabs, the Hard- When you are finished, click OK.
  • Page 28 Output selector 96 kHz. (Pro Tools channel outputs 1–2) and cannot be changed. Larger Monitor path formats similarly use subsequent Outputs as needed (depending on the channel width of the Monitor path). HD OMNI Guide...
  • Page 29 Reference Level for the phys- sample rate of the digital input source differs ical analog inputs on HD OMNI. You can also from the Pro Tools session sample rate, HD apply a limiter to each of the four analog inputs.
  • Page 30 Analog 1–2 Select this option if you want to alog lets you set the Output Level for the physi- monitor analog output channels 1–2 though cal analog outputs on HD OMNI. You can also TRS OUT 1 and 2. select which channels are mirrored on the back Analog 7–8 Select this option if you want to...
  • Page 31 Control Room monitoring Hardware Setup dialog. path (MAIN and ALT) are otherwise unavailable. The Monitor settings are saved on HD OMNI From Pro Tools, track outputs that are routed to and apply regardless of whether or not Pro Tools “Monitor”...
  • Page 32 Monitor path (see 2. below). Stereo Monitor path assigned to Analog 1 and 5 as it appears in the Hardware Setup (1 & 2) and in the I/O Setup (3) HD OMNI Guide...
  • Page 33 CR Path A Note About Odd Number Formats The Control Room Path (CR Path) channel ma- Since the Output channels for HD OMNI are in trix provides monitoring channel assignment stereo pairs, any time you assign an odd num- rows for the MAIN and ALT CR Path.
  • Page 34 Pro Tools sends only two output channels (ste- selectors let you select any channel format that reo) to HD OMNI. The LFE channel, or .1 chan- is narrower than the channel format selected for nel, is synthesized on the HD OMNI rather than the corresponding CR Path.
  • Page 35 Note that any signal routed to the “Monitor” and unavailable for other output assignments. path from Pro Tools tracks plays out the corre- sponding assigned physical output according to the MAIN and ALT assignments. Chapter 4: Configuring HD OMNI in Pro Tools...
  • Page 36 HD OMNI provides intelligent fold down options for the MAIN and ALT Control Room, and head- phone monitoring paths. HD OMNI provides three types of fold down op- tions: Type 1 Fold down between formats of the same monitor path. For example, fold down the...
  • Page 37 Room Fold-Down setting is set to Fold-Down Be- with 5.1). tween CR Paths, enabling ALT on the front panel of HD OMNI folds down the 5.1 MAIN CR Path Do Not Fold Down (L/R Channels Only) Select to the Stereo ALT CR Path.
  • Page 38 The Mixer channel strips are grouped in pairs of The Mixer page of the Hardware Setup dialog physical outputs: Analog 1–2, Analog 3–4, lets you configure HD OMNI to mix the signals AES/EBU, ADAT 1–2, and so on. Each channel coming from HD OMNI physical inputs to the strip provides the same controls.
  • Page 39 The volume control only attenuates the mines whether or not audio monitored through incoming signal from 0 dB (unity) to –INF. HD OMNI is muted when record or Input Mon- itor enabling a track in Pro Tools that shares the Option-click (Mac) or Alt-click (Windows) same physical input source.

  • Page 40: Pro Tools I/O Setup

    This section describes how to configure input, Click OK. output, bus, monitoring, cue, and other signal paths for HD OMNI in the Pro Tools I/O Setup. When you click OK, Pro Tools checks several set- tings for routing validity (to prevent feedback For more information the I/O Setup dialog, loops).
  • Page 41 I/O Setup are linked to the eight channels of physical outputs selected for The Output page of the I/O Setup for HD OMNI Output in the Main page of the Hardware Setup. lets you configure output signal path names and If you change the setting on one dialog, it auto- formats.
  • Page 42 (Setup > I/O), select the physical outputs from the Output selector. HD OMNI 5.1 Monitoring path shown in the Output page of the I/O Setup Any of the remaining Output channels can be assigned to any of the remaining available phys- Input selector ical outputs on HD OMNI.
  • Page 43 Headphone jack on the front able system output channel paths. panel of HD OMNI. You can assign Pro Tools Output channels (left and right) to CUE 1–2 in the Output page in the I/O Setup. Use these Out- put channels (such as A 9–10) from Pro Tools...
  • Page 44 Pro Tools audio interface. However, PRE (if present). with HD OMNI, any channels that are used for monitoring are unavailable for hardware inserts. H/W Insert Delays The H/W Insert Delays page of the I/O Setup is used for compensating for the delay (latency) of any Hardware Inserts.

  • Page 45: Chapter 5. Setup Mode

    • SPL Display Calibration (“SPLCAL”) Press the SETUP button on the front panel of • Fan Control (“FAN”) HD OMNI so that the SETUP button LED is lit. • Firmware Version (“VER”) Also, while in SETUP mode, text in the Display •...

  • Page 46: Analog Output (Outlvl)

    SETUP Options menu. The turn to top level of SETUP Options menu. The SETUP LED stops blinking and lights solid green. SETUP LED stops blinking and lights solid green. Exit SETUP mode. Exit SETUP mode. HD OMNI Guide...

  • Page 47: Trs Output Mirrors (Trsout)

    (TRSOUT) control lets you set whether the Ana- control lets you set whether Fold Down (as con- log TRS outputs on the back panel of HD OMNI figured in the Hardware Setup in Pro Tools) is mirror DB-25 Outputs 1–2 or DB-25 Outputs enabled or not for the MAIN and ALT Control 7–8.

  • Page 48: Analog Line Input Reference Level (In Ref)

    “–10dBV” or “+4dBu”. • CURV Press the MONITOR encoder button to select Press the MONITOR encoder button to select and confirm the displayed Input Reference the displayed Limiter option. The display shows Level. The display shows “IN 1.” “IN1.” HD OMNI Guide...

  • Page 49: Internal Sample Rate (Srate)

    (SRATE) control lets you set the internal sample to top level of SETUP Options menu. The SETUP rate for HD OMNI (44.1 kHz to 192 kHz). LED stops blinking and lights solid green. The Internal Sample Rate control is un- Exit SETUP mode.

  • Page 50: Digital 1-2 Input Source (Dig1-2)

    In SETUP mode, the Digital 1–2 Input Source • WORD (Word Clock) (DIG IN) control lets you set the Digital 1–2 In- put Format for HD OMNI. • ADAT The Digital 1–2 Input Source control is un- At sample rates of 88.2 kHz and higher, the...

  • Page 51: Sample Rate Conversion (Src1-2)

    At sample rates of 176.4 kHz and 192 kHz, Sam- ple Rate Conversion is automatically enabled if HD OMNI lets you adjust the SPL Display Cali- the Digital 1–2 Input Format is set to Optical bration both for the MAIN and ALT Monitor (S/PDIF).
  • Page 52 Press the MONITOR encoder button to con- firm the setting. Exit SETUP mode. Press SETUP button to exit SPLCAL and re- turn to top level of SETUP Options menu. The SETUP LED stops blinking and lights solid green. Exit SETUP mode. HD OMNI Guide...

  • Page 53: Fan Control (Fan)

    AUTO The fan runs at high or low speed auto- matically, depending on the internal tempera- In SETUP mode, the Firmware Version (FIRM) ture of HD OMNI. Select this option if HD OMNI options let you see the current versions of the is present in your listening environment.

  • Page 54: Factory Reset (Reset)

    HD OMNI display (0–62). Factory Reset (RESET) To adjust the contrast for the HD OMNI Display: In SETUP mode, the Factory Reset (RESET) com- Enter SETUP mode. The SETUP LED lights mand returns HD OMNI parameters to the fac- green.

  • Page 55: Appendix A. Pinout Diagrams For The Db-25 Connectors

    appendix a Pinout Diagrams for the DB-25 Connectors Analog Output DB-25 AES/EBU DB-25 +4" Analog Outputs CH1_HOT CH12_RCV_HOT CH1_COLD CH12_RCV_COLD CH1_GND CH12_RCV_GND CH2_HOT CH34_RCV_HOT CH2_COLD CH34_RCV_COLD CH2_GND CH34_RCV_GND CH3_HOT CH56_RCV_HOT CH3_COLD CH56_RCV_COLD CH3_GND CH56_RCV_GND CH4_HOT CH78_RCV_HOT CH4_COLD CH78_RCV_COLD CH4_GND CH78_RCV_GND CH5_HOT CH12_XMT_HOT CH5_COLD...
  • Page 56 HD OMNI Guide...

  • Page 57: Appendix B. Sound Pressure Level Display Calibration

    Press the MONITOR encoder button to select Unity. the SET. The display changes to show 0SPL. On HD OMNI, set the MAIN CR Path gain to Turn the MONITOR encoder to until the dis- 0 dB using the Monitor encoder.
  • Page 58 MAIN CR Path. In that case, do not re-trim the ALT speaker outputs, instead adjust the ALT Control Room level and calibrate it to match to the reference set for the MAIN CR Path (in our example 85 SPL). HD OMNI Guide...

  • Page 59: Appendix C. Compliance Information

    appendix c Compliance Information Proposition 65 Warning Environmental Compliance This product contains chemicals, including lead, known to the State of California to cause cancer and Disposal of Waste Equipment by Users birth defects or other reproductive harm. Wash hands in the European Union after handling.

  • Page 60: Emc (Electromagnetic Compliance)

    • Consult the dealer or an experienced radio/TV technician for help. Any modifications to the unit, unless expressly approved by Avid, could void the user's authority to operate the equipment. HD OMNI Guide...

  • Page 61: Important Safety Instructions

    The main power switch is located on the front panel of the HD OMNI. It should remain accessible after installation. 10) Protect power cords from being walked on or pinched particularly at plugs, convenience receptacles, and the point 18) The equipment shall be used at a maximum ambient where they exit from the equipment.
  • Page 62 HD OMNI Guide...

  • Page 63: Index

    index Numerics Control Room monitoring paths 27 Control Room Path 2.1 monitoring format 30 channel matrix 29 –20 dB pad 6 Control Room paths 27 48V phantom power 6 CR Path 27 CR Path channel assignments 31 CUE 1–2 39 AC Power connector 15 Curv 26 ADAT Optical 13...
  • Page 64 Physical outputs in I/O Setup 38 CR Path formats 29 Power Switch LED ring 5 Fold Down 30 synchronization 2 Fold Down options 32 Headphone Fold-Down setting 33 MAIN 27 High Pass Filter button 6 odd format assignments 29 HD OMNI Guide...
  • Page 65 SPL Display Calibration (SPLCAL) control 47 studio connections 20 Optical (ADAT) 24 Sync Mode about Lightpipe-compatible devices 13 LEDs 7 Optical (S/PDIF) 13 synchronization Hardware Setup 24 word clock ports 15 Optical (TOSLINK) input and output 13 system requirements 2 Optical Output Format 24 OUTRIM mode 53 Tascam DA30 25...
  • Page 66 HD OMNI Guide...
  • Page 68 Avid Technical Support (USA) Product Information 2001 Junipero Serra Boulevard Visit the Online Support Center at For company and product information, Daly City, CA 94014-3886 USA www.avid.com/support visit us on the web at www.avid.com...

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