HD MADI Guide Version 8.
Legal Notices This guide is copyrighted ©2010 by Avid Technology, Inc., (hereafter “Avid”), with all rights reserved. Under copyright laws, this guide may not be duplicated in whole or in part without the written consent of Avid.
contents Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 HD MADI Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 System Requirements and Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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chapter 1 Introduction HD MADI is a 64-channel, digital audio interface designed for use with Pro Tools|HD® systems. HD MADI supports the Multichannel Audio Digital Interface (MADI) format and sample rates of up to 192 kHz. HD MADI provides simplified connectivity between your Pro Tools|HD system and MADIcompatible audio equipment, such as routers, digital mixing consoles, VENUE systems (with the MADI option), and converters.
System Requirements and Compatibility HD MADI requires a qualified Pro Tools|HD system. Avid can only assure compatibility and provide support for hardware and software it has tested and approved. For complete system requirements and a list of qualified computers, operating systems, hard drives, and third-party devices, visit: www.avid.com/compatibility Registration Review the enclosed Registration Information Card and follow the instructions on it to quickly register your purchase online.
About www.avid.com The Avid website (www.avid.com) is your best online source for information to help you get the most out of your Pro Tools system. The following are just a few of the services and features available. Product Registration Register your purchase online.
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chapter 2 HD MADI Overview HD MADI Front Panel HD MADI front panel HD MADI has the following front panel features: Power Switch and LED Ring This button turns HD MADI on and off. The LED ring around the power button will light green or orange to indicate the system status: Green LED Ring Indicates that the unit has powered up successfully and is connected to an active Pro Tools|HD system. Orange LED Ring Indicates that the unit has power, but the computer it is connected to is shut down.
Loop Master defaults to the first Pro Tools audio interface connected to the primary, or “core” Pro Tools|HD card. On Pro Tools|HD (for PCIe) this is the Accel Core card. On Pro Tools|HD (for PCI) this is the HD Core card. Sync Mode LEDs The SYNC MODE LEDs indicate the current Clock Source as set in Pro Tools. INT (Internal) Indicates HD MADI sample clock is generated by its internal crystal oscillator, as determined by the session Sample Rate. Session Sample Rate Word Clock Support 44.1 kHz 44.
Sample Rate Convert Signal Present HD MADI provides real-time sample rate conversion on Input or Output. Sample Rate Convert (SRC) is configured in the Pro Tools Hardware Setup dialog (Setup > Hardware). The Signal Present LEDs indicate signal for Input and Output. The top LED indicates input and the bottom LED indicates output. Input Indicates HD MADI Sample Rate Convert on Input is active. Output Indicates HD MADI Sample Rate Convert on Output is active.
HD MADI Back Panel MADI OPTICAL 1 MADI COAXIAL 1 OUT OUT MADI OPTICAL 2 IN IN MADI COAXIAL 2 OUT OUT IN 1 IN IN 2 OUT IN IN PORT 1 PORT 2 SRC AES/EBU SRC WORD CLOCK WORD CLOCK LOOP SYNC AC ~ 100-240V;50-60HZ; .5A HD MADI rear panel HD MADI has the following back panel features: MADI Optical In and Out HD MADI provides 2 sets of MADI Optical In and Out ports.
Primary DigiLink Mini Ports DigiLink Mini to DigiLink Adapter Cables HD MADI provides 2 Primary DigiLink Ports. The Primary port is where the DigiLink Mini to DigiLink cable connects a Pro Tools|HD card to HD MADI. Each Primary port sends and receives up to 32 channels to and from the Pro Tools cards. Use DigiLink Mini to DigiLink adapter cables to connect HD MADI to Pro Tools|HD cards.
Word Clock In & Out LOOP SYNC In and Out The Word Clock In and Out ports are standard BNC connectors that receive and output word clock signal. These ports can be used to synchronize HD MADI with any word clock-capable device. Loop Sync is a dedicated clock loop for synchronizing multiple Pro Tools peripherals together (such as SYNC HD™ I/O and one or more audio interfaces). Loop Sync uses a word clock signal based on sample rates of either 44.1 kHz or 48 kHz.
chapter 3 Connecting HD MADI Pro Tools|HD Systems You can get a full 64 channels of MADI I/O with HD MADI connected to two Pro Tools|HD cards using two DigiLink Mini cables. If you have more than two Pro Tools|HD cards in your system (such as with a Pro Tools|HD 3 Accel system), you can add additional Pro Tools|HD audio interfaces (such as HD I/O or HD OMNI).
Connecting Loop Sync Pro Tools|HD audio interfaces need room at their sides to maintain proper air flow for cooling. Do not block the sides of the unit or disconnect the internal fan. If the units are rack-mounted in a case, remove the case lids or doors before operating the system. Failure to do so can result in the units overheating very quickly, which can permanently damage sensitive components.
chapter 4 Pro Tools Configuration for HD MADI This chapter explains how to configure HD MADI in Pro Tools. For more information about configuring your Pro Tools|HD system, see the Pro Tools|HD User Guide. To change the default Sample Rate for new sessions: 1 If a Pro Tools session is currently open, close it. 2 Choose Setup > Hardware.
Clock Source Identify The Pro Tools Hardware Setup dialog lets you select the Clock Source for your Pro Tools system. If you have multiple audio interfaces of the same type connected to your system, you should confirm the identity of each interface. This ensures that you select the appropriate interface in the Peripherals list when defining its inputs and outputs, and other settings, in the Hardware Setup dialog.
Configuring HD MADI Coaxial Select this option to use the Coaxial MADI ports for input and output. To configure controls for HD MADI: 1 Choose Setup > Hardware. 2 From the Peripherals list, select either HD MADI DigiLink 1 or HD MADI DigiLink 2 and configure the options as desired. MADI Routing The MADI Routing setting lets you choose between Normal or Split MADI input routing options. Normal Uses just the first Physical MADI port (Optical 1 or Coaxial 1 ) for MADI input.
Table 1. Available MADI channels by sample rate Session Sample Rate Full Channel Count Varispeed Channel Count 44.1/48 kHz 64 56 88.2/96 kHz 32 28 176.4/192 kHz 16 14 When using Varispeed, or when working with higher sample rates, any unavailable channels become grayed out in the I/O Setup dialog. Clock Source Select the desired Clock Source option to set the clock source for Sample Rate Conversion (SRC) on input.
SRC Word Clock In 1 Select this option to clock to the SRC Word Clock In 1 port for SRC. SRC Word Clock In 2 Select this option to clock to the SRC Word Clock In 2 port for SRC. The available options for Ext. Clock Output change depending on the session sample rate. See the table below for a list of default external clock settings and available options. Ext. Clock Output options by sample rate SRC AES/EBU Select this option to clock to the SRC AES/EBU port for SRC.
I/O Setup 2 Choose Setup > I/O. This section describes how to configure input, output, and bus signal paths for HD MADI in the Pro Tools I/O Setup. For more information the I/O Setup dialog, see the Pro Tools Reference Guide. Opening the I/O Setup Dialog To open the I/O Setup dialog: 1 Make sure HD MADI is configured properly in the Hardware Setup dialog (see “Hardware Setup” on page 13). I/O Setup dialog (Output page with HD MADI shown) Figure 1.
Varispeed Channel Count and Inactive I/O Split Mode at 176.4/192 kHz When Varispeed Channel Count is enabled in the Hardware Setup, the reduced channel count results in the highest numbered physical input and output channels being made inactive. For example, at 48 kHz with Varispeed Channel Count (28) option enabled, channels 29–32 of HD MADI DigiLink 1 and channels 61–64 of HD MADI DigiLink 2 are made inactive. When HD MADI is operating at 176.4 kHz or 192 kHz, the Split option is enabled automatically.
Input Output The Input page of the I/O Setup lets you configure input signal path names, formats, and source channel. Multichannel input paths (stereo or greater) can have any number of subpaths. Input names and channel formats are saved with the system. The Output page of the I/O Setup lets you configure output signal path names and formats. Output names and channel formats are saved with the system.
Bus Insert The Bus page lets you configure internal and output bus signal path names and formats, and map output busses to output paths (defined on the Output page). Multichannel busses (stereo or greater) can have any number of sub-paths. Output bus and internal mix bus names and channel formats are saved with the session. Output bus paths to output channel mappings are automatically generated depending on the defined session output bus paths and the available system output channel paths.
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appendix a Compliance Information Environmental Compliance Disposal of Waste Equipment by Users in the European Union Proposition 65 Warning This product contains chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. Perchlorate Notice This product may contain a lithium coin battery.
EMC (Electromagnetic Compliance) Australian Compliance Avid declares that this product complies with the following standards regulating emissions and immunity: • FCC Part 15 Class A • EN55103-1 E4 • EN55103-2 E4 • AS/NZS 3548 Class A • CISPR 22 Class A Canadian Compliance FCC Compliance for United States This Class A digital apparatus complies with Canadian ICES-003 Radio and Television Interference This equipment has been tested and found to comply with the limits for a Class A digital device, pursua
Important Safety Instructions 1) Read these instructions. 12) For products that are not rack-mountable: Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the equipment. When a cart is used, use caution when moving the cart/equipment combination to avoid injury from tip-over. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this equipment near water. 6) Clean only with dry cloth.
Avid Technical Support (USA) Product Information 2001 Junipero Serra Boulevard Daly City, CA 94014-3886 USA Visit the Online Support Center at www.avid.com/support For company and product information, visit us on the web at www.avid.
