Digital Audio IN/OUT | Alesis ADAT-XT instruction

Connections: Chapter 3

DIGITAL AUDIO IN/OUT

The Digital input and output carries all eight tracks on a single fiber optical cable. This allows you to bounce audio between multiple machines within the digital domain. This also lets you route digital audio between multiple XTs and ADATs, and to ADAT Compatible™ products such as the QuadraVerb 2. Since the fiber optic connector carries the digital information for all 8 tracks, it is also useful for backing up all tracks in one pass (see Chapter 6 for more on digital audio).

Digital bussing requires a fiber optical cable (included) for each XT in the system (or any other ADAT compatible product). This connection can be made while power is on or off, and the machines do not need to be turned on in any particular order. Note: To bounce tracks within a single XT, it is not necessary to connect the optical network.

To connect the digital optical network:

¿Locate the [DIGITAL IN] and [DIGITAL OUT] connectors. Remove the connectors’ plugs (if present) and store for later use.

¡Connect one end of the fiber optic cable into the [DIGITAL OUT] jack of the first machine in the system.

Remove the clear, plastic tube covering each end of the cable (if present). The cable is non-polarized, so either end can be inserted into the optical output.

¬Connect the other end of the fiber optic cable to the [DIGITAL IN] of the second machine in the system.

÷For each additional machine, connect one end of an additional fiber optic cable to the second machine’s [DIGITAL OUT] jack, and the other end to the third machine’s [DIGITAL IN] jack. Its [DIGITAL OUT] jack then connects to the fourth machine’s [DIGITAL IN] jack, and so on.

ƒFinally, connect one end of a fiber optic cable to the last machine’s [DIGITAL OUT] jack, and the other end to the first machine’s [DIGITAL IN] jack.

This last step creates a loop, and thus makes the digital bus accessible to all machines that are connected to it.

J	When connecting more than two machines, always connect the optical cables in the
J	same order as the sync cables (1 to 2, 2 to 3, etc.), so that the digital routing will
	work correctly.
	INPUT
	OUTPUT

INPUT

OUTPUT

ADAT XT Reference Manual

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Alesis ADAT-XT manual Digital Audio IN/OUT, To connect the digital optical network

Contents

Alesis ADAT-XT Introduction Adat XT Reference Manual Conventions Adat XT Reference Manual Contents Basic Operations Analog Recording Basics Digital Recording Basics Why S-VHS? Index Maintenance/Service Cleaning Obtaining Repair Service Chapter Setting UPAC Power Hookup Unpacking and Inspection Setting Up Line Conditioners and Protectors About Audio Cables Input Normaling Basic Audio Hookup Word on ADAT’S S-VHS Cassette Tape Threaded VS. Unthreaded Avoiding Electromagnetic Interference Operating EnvironmentThermal Considerations in Rack Mounting Mounting on a Shelf or NON-RACK Enclosure ABS n0 F0 POWER-UP,AND Tape InsertionYour First Session ABS 0H 15M 48S Recording While Formatting Formatting a Tape a MustSample Rate Selection Formatting a NEW Tape Making a Recording Track Selection and Setting LevelsTo record-enable a track REL 0H 01M 29S Record LED turns off, while the Play LED remains lit Transport ButtonsRecording To make a recording Reviewing and Cueing To engage Review modeTo engage Cue mode Playback Locating REL 0H 00M 00SPage To loop a section of tape Creating a Loop Measure twice or more, and cut only once Automated RecordingRehearsing To automatically punch in and out Pitch Control Track DelayABS 00 % 00 C 70 mS To bounce audio from one track to another To adjust the display brightnessTrack Copy Display Brightness Analog Audio Unbalanced Outputs Input Jack CharacteristicsConnections Analog Audio Unbalanced Inputs Additional grounds Analog Audio Balanced Inputs and Outputs Input Mode Analog Audio Input Mode To synchronize multiple XTs and/or ADATs Sync IN/OUT To connect the digital optical network Digital Audio IN/OUT Versa FootswitchesRehearse and Auto Record features XT Remote Complete Format Basic OperationsTape Formatting Formatting Considerations Be sure the tape is completely rewound Format Extend To extend the format on a partially formatted tape ABS Pr 0t 0 FFABS Pr 0t 0 n Write Protect Override Reading the Display Display Icons Basic Operations Selected 01M 29STime Counter & ABS/REL Button Locate Editing Individual Digits Basic EditingEdit Value Button Entering Numeric Values Track Copy Input SelectAnalog Input Digital Input Basic Operations Auto Input Monitor Input MonitorALL Input Monitor Recording a Benchmark T APE Peak Mode ButtonFine Meter Mode Meters Setting Levels Record Enable Fast Forward /CUE Transport ControlsEject Rewind /REVIEW To start recording RECORD/PUNCH in or OUTStop Whether the tape being played is formatted or not To select the sample rate Sample Rate ClockRecord Crossfade Time Positions as before Displaying Frames VS THS/SECONDS FA dE 2To set the Crossfade Time About Pitch Changing 10 mS To turn Track Delay on and offTo set the Track Delay amount To set multiple tracks to the same Track Delay value Absolute ABS Time VS . Relative Time Autolocation ControlsLocate To edit a Locate Point memory Setting Locate PointsLocating To store a Locate Point memory on the fly Loop Limit Auto LoopingAuto Return Auto Play Rehearsal Auto RecordTape Length Looped Recording European equivalents and approximate recording times To set the tape lengthErroneously selected, to avoid damage to the tape Footswitch Controlled Punching Footswitch ControlsFootswitch Controlled Autolocating Using the XT Remote Overview OperationSynchronizing Machines Achieving Lock Master /SLAVE Interaction Formatting Multiple Tapes Independent Slave ModeMaster Format ENABLED, Complete Format Master Format ENABLED, Format Extend Master Format DISABLED, Format Extend Master Format DisabledBefore punching into format record Reassigning Channels to Different Tracks Making Digital BackupsRecording Digital Audio Bouncing Tracks Between Adats Recording Digital Audio from Other Sources To make a backup tape Digital Clock Considerations Tape Offset ABS 0H 00M 00S Setting the Machine Offset Input Monitoring Combining XTS and AdatsXT Transport Speed Sample Rate VS. Pitch Control Polarity Differences Here are some possible solutionsConnections Multiple ADAT-XT Operation Chapter Multiple ADAT-XT Operation Adat XT Reference Manual Combined MULTITRACK/MASTERING Deck Applications LIVE/LONG-TERM Recording Midi Systems Virtual Tracking Midi Machine Control Virtual Remote ControlLocking to Video Code only Master Computer Control Modular Recording Libraries and Archives Calculating Tape Offset Using the Locates Using Track Copy AS a Digital Router Press Edit VALUE, then press Locate Appendix a Digital Recording ConceptsAnalog Recording Basics Digital Recording Basics WHY S-VHS? Appendix B TroubleshootingTROUBLE-SHOOTING Index RE-INITIALIZING ABS d1 SP r E9 Error Rate DisplayAbout Error Rate Readings ABS d1 SP E rr Adat Head Maintenance Drum Time Display Tape Maintenance Safe TapeMAINTENANCE/SERVICE Cleaning Customers in the USA MaintenanceObtaining Repair Service Refer ALL Servicing to Alesis Appendix B Troubleshooting Appendix C Error Codes Automatic Brake Calibration Procedure Steps to Take Before Calling for Help SpecificationsAppendix D Audio Digital Inputs/Outputs Or Analog-to-Digital Converter Glossary DAT Bus MMC Midi SMPTE/LTC Output Vitc VHS Index Index Adat XT Reference Manual